Home / 40,778.10-61,152.47-14,116.85

Finding the Fourth Proportional to 40,778.10, 61,152.47 and 14,116.85

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Solution

The fourth proportional to 40,778.10, 61,152.47 and 14,116.85 is: 21,170.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,778.10 : 61,152.47 = 14,116.85 : x
  2. Step 2: Convert to fraction form
    40,778.10/61,152.47 = 14,116.85/x
  3. Step 3: Cross multiply
    40,778.10x = 61,152.47 × 14,116.85
  4. Step 4: Simplify right side
    40,778.10x = 863,279,869.77
  5. Step 5: Solve for x
    x = 863,279,869.77/40,778.10
  6. Step 6: Final answer
    x = 21,170.18

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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.