Home / 86,053.10-129,130.41-36,141.98

Finding the Fourth Proportional to 86,053.10, 129,130.41 and 36,141.98

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Solution

The fourth proportional to 86,053.10, 129,130.41 and 36,141.98 is: 54,234.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,053.10 : 129,130.41 = 36,141.98 : x
  2. Step 2: Convert to fraction form
    86,053.10/129,130.41 = 36,141.98/x
  3. Step 3: Cross multiply
    86,053.10x = 129,130.41 × 36,141.98
  4. Step 4: Simplify right side
    86,053.10x = 4,667,028,695.61
  5. Step 5: Solve for x
    x = 4,667,028,695.61/86,053.10
  6. Step 6: Final answer
    x = 54,234.29

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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.