Home / 40,389.18-60,605.64-38,916.60

Finding the Fourth Proportional to 40,389.18, 60,605.64 and 38,916.60

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Solution

The fourth proportional to 40,389.18, 60,605.64 and 38,916.60 is: 58,395.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,389.18 : 60,605.64 = 38,916.60 : x
  2. Step 2: Convert to fraction form
    40,389.18/60,605.64 = 38,916.60/x
  3. Step 3: Cross multiply
    40,389.18x = 60,605.64 × 38,916.60
  4. Step 4: Simplify right side
    40,389.18x = 2,358,565,449.62
  5. Step 5: Solve for x
    x = 2,358,565,449.62/40,389.18
  6. Step 6: Final answer
    x = 58,395.97

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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.