Home / 87,700.68-121,124.88-59,357.16

Finding the Fourth Proportional to 87,700.68, 121,124.88 and 59,357.16

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Solution

The fourth proportional to 87,700.68, 121,124.88 and 59,357.16 is: 81,979.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,700.68 : 121,124.88 = 59,357.16 : x
  2. Step 2: Convert to fraction form
    87,700.68/121,124.88 = 59,357.16/x
  3. Step 3: Cross multiply
    87,700.68x = 121,124.88 × 59,357.16
  4. Step 4: Simplify right side
    87,700.68x = 7,189,628,882.14
  5. Step 5: Solve for x
    x = 7,189,628,882.14/87,700.68
  6. Step 6: Final answer
    x = 81,979.17

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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.