Home / 41,155.16-61,732.80-9,990.41

Finding the Fourth Proportional to 41,155.16, 61,732.80 and 9,990.41

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Solution

The fourth proportional to 41,155.16, 61,732.80 and 9,990.41 is: 14,985.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,155.16 : 61,732.80 = 9,990.41 : x
  2. Step 2: Convert to fraction form
    41,155.16/61,732.80 = 9,990.41/x
  3. Step 3: Cross multiply
    41,155.16x = 61,732.80 × 9,990.41
  4. Step 4: Simplify right side
    41,155.16x = 616,735,673.78
  5. Step 5: Solve for x
    x = 616,735,673.78/41,155.16
  6. Step 6: Final answer
    x = 14,985.62

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1.5x scale

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.