Home / 92,972.40-139,443.92-40,367.76

Finding the Fourth Proportional to 92,972.40, 139,443.92 and 40,367.76

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Solution

The fourth proportional to 92,972.40, 139,443.92 and 40,367.76 is: 60,545.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,972.40 : 139,443.92 = 40,367.76 : x
  2. Step 2: Convert to fraction form
    92,972.40/139,443.92 = 40,367.76/x
  3. Step 3: Cross multiply
    92,972.40x = 139,443.92 × 40,367.76
  4. Step 4: Simplify right side
    92,972.40x = 5,629,038,696.02
  5. Step 5: Solve for x
    x = 5,629,038,696.02/92,972.40
  6. Step 6: Final answer
    x = 60,545.27

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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.