Home / 83,526.85-125,230.75-39,129.40

Finding the Fourth Proportional to 83,526.85, 125,230.75 and 39,129.40

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Solution

The fourth proportional to 83,526.85, 125,230.75 and 39,129.40 is: 58,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,526.85 : 125,230.75 = 39,129.40 : x
  2. Step 2: Convert to fraction form
    83,526.85/125,230.75 = 39,129.40/x
  3. Step 3: Cross multiply
    83,526.85x = 125,230.75 × 39,129.40
  4. Step 4: Simplify right side
    83,526.85x = 4,900,203,698.15
  5. Step 5: Solve for x
    x = 4,900,203,698.15/83,526.85
  6. Step 6: Final answer
    x = 58,666.21

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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.