Home / 64,260.30-88,711.39-40,400.13

Finding the Fourth Proportional to 64,260.30, 88,711.39 and 40,400.13

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Solution

The fourth proportional to 64,260.30, 88,711.39 and 40,400.13 is: 55,772.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,260.30 : 88,711.39 = 40,400.13 : x
  2. Step 2: Convert to fraction form
    64,260.30/88,711.39 = 40,400.13/x
  3. Step 3: Cross multiply
    64,260.30x = 88,711.39 × 40,400.13
  4. Step 4: Simplify right side
    64,260.30x = 3,583,951,486.48
  5. Step 5: Solve for x
    x = 3,583,951,486.48/64,260.30
  6. Step 6: Final answer
    x = 55,772.41

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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.