Home / 65,348.13-90,166.50-38,480.83

Finding the Fourth Proportional to 65,348.13, 90,166.50 and 38,480.83

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Solution

The fourth proportional to 65,348.13, 90,166.50 and 38,480.83 is: 53,095.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,348.13 : 90,166.50 = 38,480.83 : x
  2. Step 2: Convert to fraction form
    65,348.13/90,166.50 = 38,480.83/x
  3. Step 3: Cross multiply
    65,348.13x = 90,166.50 × 38,480.83
  4. Step 4: Simplify right side
    65,348.13x = 3,469,681,758.20
  5. Step 5: Solve for x
    x = 3,469,681,758.20/65,348.13
  6. Step 6: Final answer
    x = 53,095.35

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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.