Home / 87,068.95-120,146.75-48,830.06

Finding the Fourth Proportional to 87,068.95, 120,146.75 and 48,830.06

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Solution

The fourth proportional to 87,068.95, 120,146.75 and 48,830.06 is: 67,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,068.95 : 120,146.75 = 48,830.06 : x
  2. Step 2: Convert to fraction form
    87,068.95/120,146.75 = 48,830.06/x
  3. Step 3: Cross multiply
    87,068.95x = 120,146.75 × 48,830.06
  4. Step 4: Simplify right side
    87,068.95x = 5,866,773,067.52
  5. Step 5: Solve for x
    x = 5,866,773,067.52/87,068.95
  6. Step 6: Final answer
    x = 67,380.77

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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.