Home / 87,987.24-121,259.52-62,494.74

Finding the Fourth Proportional to 87,987.24, 121,259.52 and 62,494.74

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Solution

The fourth proportional to 87,987.24, 121,259.52 and 62,494.74 is: 86,127.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,987.24 : 121,259.52 = 62,494.74 : x
  2. Step 2: Convert to fraction form
    87,987.24/121,259.52 = 62,494.74/x
  3. Step 3: Cross multiply
    87,987.24x = 121,259.52 × 62,494.74
  4. Step 4: Simplify right side
    87,987.24x = 7,578,082,174.92
  5. Step 5: Solve for x
    x = 7,578,082,174.92/87,987.24
  6. Step 6: Final answer
    x = 86,127.06

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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.