Home / 72,077.19-108,115.79-36,994.47

Finding the Fourth Proportional to 72,077.19, 108,115.79 and 36,994.47

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Solution

The fourth proportional to 72,077.19, 108,115.79 and 36,994.47 is: 55,491.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,077.19 : 108,115.79 = 36,994.47 : x
  2. Step 2: Convert to fraction form
    72,077.19/108,115.79 = 36,994.47/x
  3. Step 3: Cross multiply
    72,077.19x = 108,115.79 × 36,994.47
  4. Step 4: Simplify right side
    72,077.19x = 3,999,686,164.71
  5. Step 5: Solve for x
    x = 3,999,686,164.71/72,077.19
  6. Step 6: Final answer
    x = 55,491.71

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.