Home / 86,575.30-129,875.10-27,404.80

Finding the Fourth Proportional to 86,575.30, 129,875.10 and 27,404.80

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Solution

The fourth proportional to 86,575.30, 129,875.10 and 27,404.80 is: 41,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,575.30 : 129,875.10 = 27,404.80 : x
  2. Step 2: Convert to fraction form
    86,575.30/129,875.10 = 27,404.80/x
  3. Step 3: Cross multiply
    86,575.30x = 129,875.10 × 27,404.80
  4. Step 4: Simplify right side
    86,575.30x = 3,559,201,140.48
  5. Step 5: Solve for x
    x = 3,559,201,140.48/86,575.30
  6. Step 6: Final answer
    x = 41,111.05

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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.