Home / 72,177.63-108,217.17-38,448.69

Finding the Fourth Proportional to 72,177.63, 108,217.17 and 38,448.69

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Solution

The fourth proportional to 72,177.63, 108,217.17 and 38,448.69 is: 57,646.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,177.63 : 108,217.17 = 38,448.69 : x
  2. Step 2: Convert to fraction form
    72,177.63/108,217.17 = 38,448.69/x
  3. Step 3: Cross multiply
    72,177.63x = 108,217.17 × 38,448.69
  4. Step 4: Simplify right side
    72,177.63x = 4,160,808,422.01
  5. Step 5: Solve for x
    x = 4,160,808,422.01/72,177.63
  6. Step 6: Final answer
    x = 57,646.79

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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.