Home / 77,159.31-106,540.26-59,225.91

Finding the Fourth Proportional to 77,159.31, 106,540.26 and 59,225.91

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Solution

The fourth proportional to 77,159.31, 106,540.26 and 59,225.91 is: 81,778.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,159.31 : 106,540.26 = 59,225.91 : x
  2. Step 2: Convert to fraction form
    77,159.31/106,540.26 = 59,225.91/x
  3. Step 3: Cross multiply
    77,159.31x = 106,540.26 × 59,225.91
  4. Step 4: Simplify right side
    77,159.31x = 6,309,943,850.14
  5. Step 5: Solve for x
    x = 6,309,943,850.14/77,159.31
  6. Step 6: Final answer
    x = 81,778.13

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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.