Home / 40,363.40-60,545.10-31,605.80

Finding the Fourth Proportional to 40,363.40, 60,545.10 and 31,605.80

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Solution

The fourth proportional to 40,363.40, 60,545.10 and 31,605.80 is: 47,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,363.40 : 60,545.10 = 31,605.80 : x
  2. Step 2: Convert to fraction form
    40,363.40/60,545.10 = 31,605.80/x
  3. Step 3: Cross multiply
    40,363.40x = 60,545.10 × 31,605.80
  4. Step 4: Simplify right side
    40,363.40x = 1,913,576,321.58
  5. Step 5: Solve for x
    x = 1,913,576,321.58/40,363.40
  6. Step 6: Final answer
    x = 47,408.70

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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.