Home / 87,407.58-120,519.29-59,825.55

Finding the Fourth Proportional to 87,407.58, 120,519.29 and 59,825.55

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Solution

The fourth proportional to 87,407.58, 120,519.29 and 59,825.55 is: 82,488.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,407.58 : 120,519.29 = 59,825.55 : x
  2. Step 2: Convert to fraction form
    87,407.58/120,519.29 = 59,825.55/x
  3. Step 3: Cross multiply
    87,407.58x = 120,519.29 × 59,825.55
  4. Step 4: Simplify right side
    87,407.58x = 7,210,132,809.86
  5. Step 5: Solve for x
    x = 7,210,132,809.86/87,407.58
  6. Step 6: Final answer
    x = 82,488.64

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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.