Home / 86,490.24-129,752.86-36,570.25

Finding the Fourth Proportional to 86,490.24, 129,752.86 and 36,570.25

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Solution

The fourth proportional to 86,490.24, 129,752.86 and 36,570.25 is: 54,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,490.24 : 129,752.86 = 36,570.25 : x
  2. Step 2: Convert to fraction form
    86,490.24/129,752.86 = 36,570.25/x
  3. Step 3: Cross multiply
    86,490.24x = 129,752.86 × 36,570.25
  4. Step 4: Simplify right side
    86,490.24x = 4,745,094,436.99
  5. Step 5: Solve for x
    x = 4,745,094,436.99/86,490.24
  6. Step 6: Final answer
    x = 54,862.78

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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.