Home / 86,134.31-129,069.91-36,187.10

Finding the Fourth Proportional to 86,134.31, 129,069.91 and 36,187.10

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Solution

The fourth proportional to 86,134.31, 129,069.91 and 36,187.10 is: 54,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,134.31 : 129,069.91 = 36,187.10 : x
  2. Step 2: Convert to fraction form
    86,134.31/129,069.91 = 36,187.10/x
  3. Step 3: Cross multiply
    86,134.31x = 129,069.91 × 36,187.10
  4. Step 4: Simplify right side
    86,134.31x = 4,670,666,146.52
  5. Step 5: Solve for x
    x = 4,670,666,146.52/86,134.31
  6. Step 6: Final answer
    x = 54,225.38

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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.