Home / 86,567.60-129,851.40-71,805.35

Finding the Fourth Proportional to 86,567.60, 129,851.40 and 71,805.35

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Solution

The fourth proportional to 86,567.60, 129,851.40 and 71,805.35 is: 107,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,567.60 : 129,851.40 = 71,805.35 : x
  2. Step 2: Convert to fraction form
    86,567.60/129,851.40 = 71,805.35/x
  3. Step 3: Cross multiply
    86,567.60x = 129,851.40 × 71,805.35
  4. Step 4: Simplify right side
    86,567.60x = 9,324,025,224.99
  5. Step 5: Solve for x
    x = 9,324,025,224.99/86,567.60
  6. Step 6: Final answer
    x = 107,708.03

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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.