Home / 85,233.20-127,733.04-54,090.32

Finding the Fourth Proportional to 85,233.20, 127,733.04 and 54,090.32

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Solution

The fourth proportional to 85,233.20, 127,733.04 and 54,090.32 is: 81,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,233.20 : 127,733.04 = 54,090.32 : x
  2. Step 2: Convert to fraction form
    85,233.20/127,733.04 = 54,090.32/x
  3. Step 3: Cross multiply
    85,233.20x = 127,733.04 × 54,090.32
  4. Step 4: Simplify right side
    85,233.20x = 6,909,121,008.17
  5. Step 5: Solve for x
    x = 6,909,121,008.17/85,233.20
  6. Step 6: Final answer
    x = 81,061.38

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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.