Home / 83,748.27-125,520.21-39,315.72

Finding the Fourth Proportional to 83,748.27, 125,520.21 and 39,315.72

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Solution

The fourth proportional to 83,748.27, 125,520.21 and 39,315.72 is: 58,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,748.27 : 125,520.21 = 39,315.72 : x
  2. Step 2: Convert to fraction form
    83,748.27/125,520.21 = 39,315.72/x
  3. Step 3: Cross multiply
    83,748.27x = 125,520.21 × 39,315.72
  4. Step 4: Simplify right side
    83,748.27x = 4,934,917,430.70
  5. Step 5: Solve for x
    x = 4,934,917,430.70/83,748.27
  6. Step 6: Final answer
    x = 58,925.60

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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.