Home / 57,239.28-78,990.16-32,088.78

Finding the Fourth Proportional to 57,239.28, 78,990.16 and 32,088.78

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Solution

The fourth proportional to 57,239.28, 78,990.16 and 32,088.78 is: 44,282.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,239.28 : 78,990.16 = 32,088.78 : x
  2. Step 2: Convert to fraction form
    57,239.28/78,990.16 = 32,088.78/x
  3. Step 3: Cross multiply
    57,239.28x = 78,990.16 × 32,088.78
  4. Step 4: Simplify right side
    57,239.28x = 2,534,697,866.40
  5. Step 5: Solve for x
    x = 2,534,697,866.40/57,239.28
  6. Step 6: Final answer
    x = 44,282.49

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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.