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Finding the Fourth Proportional to 84,720.52, 127,080.76 and 29,316.52

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Solution

The fourth proportional to 84,720.52, 127,080.76 and 29,316.52 is: 43,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,720.52 : 127,080.76 = 29,316.52 : x
  2. Step 2: Convert to fraction form
    84,720.52/127,080.76 = 29,316.52/x
  3. Step 3: Cross multiply
    84,720.52x = 127,080.76 × 29,316.52
  4. Step 4: Simplify right side
    84,720.52x = 3,725,565,642.16
  5. Step 5: Solve for x
    x = 3,725,565,642.16/84,720.52
  6. Step 6: Final answer
    x = 43,974.77

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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.