Home / 86,218.59-129,312.90-23,874.51

Finding the Fourth Proportional to 86,218.59, 129,312.90 and 23,874.51

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Solution

The fourth proportional to 86,218.59, 129,312.90 and 23,874.51 is: 35,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,218.59 : 129,312.90 = 23,874.51 : x
  2. Step 2: Convert to fraction form
    86,218.59/129,312.90 = 23,874.51/x
  3. Step 3: Cross multiply
    86,218.59x = 129,312.90 × 23,874.51
  4. Step 4: Simplify right side
    86,218.59x = 3,087,282,124.18
  5. Step 5: Solve for x
    x = 3,087,282,124.18/86,218.59
  6. Step 6: Final answer
    x = 35,807.62

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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.