Home / 40,730.70-61,095.98-11,148.78

Finding the Fourth Proportional to 40,730.70, 61,095.98 and 11,148.78

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Solution

The fourth proportional to 40,730.70, 61,095.98 and 11,148.78 is: 16,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,730.70 : 61,095.98 = 11,148.78 : x
  2. Step 2: Convert to fraction form
    40,730.70/61,095.98 = 11,148.78/x
  3. Step 3: Cross multiply
    40,730.70x = 61,095.98 × 11,148.78
  4. Step 4: Simplify right side
    40,730.70x = 681,145,639.90
  5. Step 5: Solve for x
    x = 681,145,639.90/40,730.70
  6. Step 6: Final answer
    x = 16,723.15

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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.