Home / 65,293.12-90,123.19-38,451.20

Finding the Fourth Proportional to 65,293.12, 90,123.19 and 38,451.20

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Solution

The fourth proportional to 65,293.12, 90,123.19 and 38,451.20 is: 53,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,293.12 : 90,123.19 = 38,451.20 : x
  2. Step 2: Convert to fraction form
    65,293.12/90,123.19 = 38,451.20/x
  3. Step 3: Cross multiply
    65,293.12x = 90,123.19 × 38,451.20
  4. Step 4: Simplify right side
    65,293.12x = 3,465,344,803.33
  5. Step 5: Solve for x
    x = 3,465,344,803.33/65,293.12
  6. Step 6: Final answer
    x = 53,073.66

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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.