Home / 86,425.20-119,264.40-48,185.28

Finding the Fourth Proportional to 86,425.20, 119,264.40 and 48,185.28

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Solution

The fourth proportional to 86,425.20, 119,264.40 and 48,185.28 is: 66,494.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,425.20 : 119,264.40 = 48,185.28 : x
  2. Step 2: Convert to fraction form
    86,425.20/119,264.40 = 48,185.28/x
  3. Step 3: Cross multiply
    86,425.20x = 119,264.40 × 48,185.28
  4. Step 4: Simplify right side
    86,425.20x = 5,746,788,508.03
  5. Step 5: Solve for x
    x = 5,746,788,508.03/86,425.20
  6. Step 6: Final answer
    x = 66,494.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.