Home / 52,419.15-72,407.66-38,834.78

Finding the Fourth Proportional to 52,419.15, 72,407.66 and 38,834.78

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Solution

The fourth proportional to 52,419.15, 72,407.66 and 38,834.78 is: 53,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,419.15 : 72,407.66 = 38,834.78 : x
  2. Step 2: Convert to fraction form
    52,419.15/72,407.66 = 38,834.78/x
  3. Step 3: Cross multiply
    52,419.15x = 72,407.66 × 38,834.78
  4. Step 4: Simplify right side
    52,419.15x = 2,811,934,990.20
  5. Step 5: Solve for x
    x = 2,811,934,990.20/52,419.15
  6. Step 6: Final answer
    x = 53,643.28

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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.