Home / 70,132.38-96,784.65-38,301.72

Finding the Fourth Proportional to 70,132.38, 96,784.65 and 38,301.72

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Solution

The fourth proportional to 70,132.38, 96,784.65 and 38,301.72 is: 52,857.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,132.38 : 96,784.65 = 38,301.72 : x
  2. Step 2: Convert to fraction form
    70,132.38/96,784.65 = 38,301.72/x
  3. Step 3: Cross multiply
    70,132.38x = 96,784.65 × 38,301.72
  4. Step 4: Simplify right side
    70,132.38x = 3,707,018,564.60
  5. Step 5: Solve for x
    x = 3,707,018,564.60/70,132.38
  6. Step 6: Final answer
    x = 52,857.45

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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.