Home / 98,252.12-135,582-57,978.50

Finding the Fourth Proportional to 98,252.12, 135,582 and 57,978.50

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Solution

The fourth proportional to 98,252.12, 135,582 and 57,978.50 is: 80,006.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,252.12 : 135,582 = 57,978.50 : x
  2. Step 2: Convert to fraction form
    98,252.12/135,582 = 57,978.50/x
  3. Step 3: Cross multiply
    98,252.12x = 135,582 × 57,978.50
  4. Step 4: Simplify right side
    98,252.12x = 7,860,840,987
  5. Step 5: Solve for x
    x = 7,860,840,987/98,252.12
  6. Step 6: Final answer
    x = 80,006.83

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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.