Home / 87,126.39-120,271.12-58,870.35

Finding the Fourth Proportional to 87,126.39, 120,271.12 and 58,870.35

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Solution

The fourth proportional to 87,126.39, 120,271.12 and 58,870.35 is: 81,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,126.39 : 120,271.12 = 58,870.35 : x
  2. Step 2: Convert to fraction form
    87,126.39/120,271.12 = 58,870.35/x
  3. Step 3: Cross multiply
    87,126.39x = 120,271.12 × 58,870.35
  4. Step 4: Simplify right side
    87,126.39x = 7,080,402,782.12
  5. Step 5: Solve for x
    x = 7,080,402,782.12/87,126.39
  6. Step 6: Final answer
    x = 81,265.88

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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.