Home / 87,801.12-121,132.86-57,603.24

Finding the Fourth Proportional to 87,801.12, 121,132.86 and 57,603.24

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Solution

The fourth proportional to 87,801.12, 121,132.86 and 57,603.24 is: 79,471.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801.12 : 121,132.86 = 57,603.24 : x
  2. Step 2: Convert to fraction form
    87,801.12/121,132.86 = 57,603.24/x
  3. Step 3: Cross multiply
    87,801.12x = 121,132.86 × 57,603.24
  4. Step 4: Simplify right side
    87,801.12x = 6,977,645,206.47
  5. Step 5: Solve for x
    x = 6,977,645,206.47/87,801.12
  6. Step 6: Final answer
    x = 79,471.03

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1.5x scale

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.