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Finding the Fourth Proportional to 85,330.80, 127,823.40 and 59,065.20

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Solution

The fourth proportional to 85,330.80, 127,823.40 and 59,065.20 is: 88,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,330.80 : 127,823.40 = 59,065.20 : x
  2. Step 2: Convert to fraction form
    85,330.80/127,823.40 = 59,065.20/x
  3. Step 3: Cross multiply
    85,330.80x = 127,823.40 × 59,065.20
  4. Step 4: Simplify right side
    85,330.80x = 7,549,914,685.68
  5. Step 5: Solve for x
    x = 7,549,914,685.68/85,330.80
  6. Step 6: Final answer
    x = 88,478.19

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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.