Home / 86,486.40-129,549.12-44,807.04

Finding the Fourth Proportional to 86,486.40, 129,549.12 and 44,807.04

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Solution

The fourth proportional to 86,486.40, 129,549.12 and 44,807.04 is: 67,117.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,486.40 : 129,549.12 = 44,807.04 : x
  2. Step 2: Convert to fraction form
    86,486.40/129,549.12 = 44,807.04/x
  3. Step 3: Cross multiply
    86,486.40x = 129,549.12 × 44,807.04
  4. Step 4: Simplify right side
    86,486.40x = 5,804,712,601.80
  5. Step 5: Solve for x
    x = 5,804,712,601.80/86,486.40
  6. Step 6: Final answer
    x = 67,117.06

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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.