Home / 65,339.13-90,154.09-38,471.83

Finding the Fourth Proportional to 65,339.13, 90,154.09 and 38,471.83

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Solution

The fourth proportional to 65,339.13, 90,154.09 and 38,471.83 is: 53,082.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,339.13 : 90,154.09 = 38,471.83 : x
  2. Step 2: Convert to fraction form
    65,339.13/90,154.09 = 38,471.83/x
  3. Step 3: Cross multiply
    65,339.13x = 90,154.09 × 38,471.83
  4. Step 4: Simplify right side
    65,339.13x = 3,468,392,728.11
  5. Step 5: Solve for x
    x = 3,468,392,728.11/65,339.13
  6. Step 6: Final answer
    x = 53,082.94

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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.