Home / 86,389.29-129,575.18-23,201.21

Finding the Fourth Proportional to 86,389.29, 129,575.18 and 23,201.21

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Solution

The fourth proportional to 86,389.29, 129,575.18 and 23,201.21 is: 34,799.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,389.29 : 129,575.18 = 23,201.21 : x
  2. Step 2: Convert to fraction form
    86,389.29/129,575.18 = 23,201.21/x
  3. Step 3: Cross multiply
    86,389.29x = 129,575.18 × 23,201.21
  4. Step 4: Simplify right side
    86,389.29x = 3,006,300,314.09
  5. Step 5: Solve for x
    x = 3,006,300,314.09/86,389.29
  6. Step 6: Final answer
    x = 34,799.46

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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.