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Finding the Fourth Proportional to 62,844.32, 86,720 and 36,998.76

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Solution

The fourth proportional to 62,844.32, 86,720 and 36,998.76 is: 51,055.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,844.32 : 86,720 = 36,998.76 : x
  2. Step 2: Convert to fraction form
    62,844.32/86,720 = 36,998.76/x
  3. Step 3: Cross multiply
    62,844.32x = 86,720 × 36,998.76
  4. Step 4: Simplify right side
    62,844.32x = 3,208,532,467.20
  5. Step 5: Solve for x
    x = 3,208,532,467.20/62,844.32
  6. Step 6: Final answer
    x = 51,055.25

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.