Home / 92,931.78-139,319.29-40,301.62

Finding the Fourth Proportional to 92,931.78, 139,319.29 and 40,301.62

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Solution

The fourth proportional to 92,931.78, 139,319.29 and 40,301.62 is: 60,418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,931.78 : 139,319.29 = 40,301.62 : x
  2. Step 2: Convert to fraction form
    92,931.78/139,319.29 = 40,301.62/x
  3. Step 3: Cross multiply
    92,931.78x = 139,319.29 × 40,301.62
  4. Step 4: Simplify right side
    92,931.78x = 5,614,793,084.25
  5. Step 5: Solve for x
    x = 5,614,793,084.25/92,931.78
  6. Step 6: Final answer
    x = 60,418.44

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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.