Home / 56,484.35-77,947.90-30,990.23

Finding the Fourth Proportional to 56,484.35, 77,947.90 and 30,990.23

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Solution

The fourth proportional to 56,484.35, 77,947.90 and 30,990.23 is: 42,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,484.35 : 77,947.90 = 30,990.23 : x
  2. Step 2: Convert to fraction form
    56,484.35/77,947.90 = 30,990.23/x
  3. Step 3: Cross multiply
    56,484.35x = 77,947.90 × 30,990.23
  4. Step 4: Simplify right side
    56,484.35x = 2,415,623,174.11
  5. Step 5: Solve for x
    x = 2,415,623,174.11/56,484.35
  6. Step 6: Final answer
    x = 42,766.24

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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.