Home / 86,052.10-129,128.91-36,140.98

Finding the Fourth Proportional to 86,052.10, 129,128.91 and 36,140.98

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Solution

The fourth proportional to 86,052.10, 129,128.91 and 36,140.98 is: 54,232.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,052.10 : 129,128.91 = 36,140.98 : x
  2. Step 2: Convert to fraction form
    86,052.10/129,128.91 = 36,140.98/x
  3. Step 3: Cross multiply
    86,052.10x = 129,128.91 × 36,140.98
  4. Step 4: Simplify right side
    86,052.10x = 4,666,845,353.73
  5. Step 5: Solve for x
    x = 4,666,845,353.73/86,052.10
  6. Step 6: Final answer
    x = 54,232.79

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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.