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Finding the Fourth Proportional to 82,888.26, 124,333.26 and 66,353.40

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Solution

The fourth proportional to 82,888.26, 124,333.26 and 66,353.40 is: 99,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,888.26 : 124,333.26 = 66,353.40 : x
  2. Step 2: Convert to fraction form
    82,888.26/124,333.26 = 66,353.40/x
  3. Step 3: Cross multiply
    82,888.26x = 124,333.26 × 66,353.40
  4. Step 4: Simplify right side
    82,888.26x = 8,249,934,534.08
  5. Step 5: Solve for x
    x = 8,249,934,534.08/82,888.26
  6. Step 6: Final answer
    x = 99,530.80

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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.