Home / 40,755.52-61,135.76-11,172.16

Finding the Fourth Proportional to 40,755.52, 61,135.76 and 11,172.16

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Solution

The fourth proportional to 40,755.52, 61,135.76 and 11,172.16 is: 16,758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,755.52 : 61,135.76 = 11,172.16 : x
  2. Step 2: Convert to fraction form
    40,755.52/61,135.76 = 11,172.16/x
  3. Step 3: Cross multiply
    40,755.52x = 61,135.76 × 11,172.16
  4. Step 4: Simplify right side
    40,755.52x = 683,018,492.44
  5. Step 5: Solve for x
    x = 683,018,492.44/40,755.52
  6. Step 6: Final answer
    x = 16,758.92

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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.