Home / 87,978.66-121,510.82-59,635.14

Finding the Fourth Proportional to 87,978.66, 121,510.82 and 59,635.14

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Solution

The fourth proportional to 87,978.66, 121,510.82 and 59,635.14 is: 82,364.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,978.66 : 121,510.82 = 59,635.14 : x
  2. Step 2: Convert to fraction form
    87,978.66/121,510.82 = 59,635.14/x
  3. Step 3: Cross multiply
    87,978.66x = 121,510.82 × 59,635.14
  4. Step 4: Simplify right side
    87,978.66x = 7,246,314,762.21
  5. Step 5: Solve for x
    x = 7,246,314,762.21/87,978.66
  6. Step 6: Final answer
    x = 82,364.46

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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.