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Finding the Fourth Proportional to 85,127.88, 127,649.10 and 49,600.68

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Solution

The fourth proportional to 85,127.88, 127,649.10 and 49,600.68 is: 74,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,127.88 : 127,649.10 = 49,600.68 : x
  2. Step 2: Convert to fraction form
    85,127.88/127,649.10 = 49,600.68/x
  3. Step 3: Cross multiply
    85,127.88x = 127,649.10 × 49,600.68
  4. Step 4: Simplify right side
    85,127.88x = 6,331,482,161.39
  5. Step 5: Solve for x
    x = 6,331,482,161.39/85,127.88
  6. Step 6: Final answer
    x = 74,376.13

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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.