Home / 54,221.10-81,331.65-35,618.70

Finding the Fourth Proportional to 54,221.10, 81,331.65 and 35,618.70

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Solution

The fourth proportional to 54,221.10, 81,331.65 and 35,618.70 is: 53,428.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,221.10 : 81,331.65 = 35,618.70 : x
  2. Step 2: Convert to fraction form
    54,221.10/81,331.65 = 35,618.70/x
  3. Step 3: Cross multiply
    54,221.10x = 81,331.65 × 35,618.70
  4. Step 4: Simplify right side
    54,221.10x = 2,896,927,641.86
  5. Step 5: Solve for x
    x = 2,896,927,641.86/54,221.10
  6. Step 6: Final answer
    x = 53,428.05

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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.