Home / 98,326.40-147,511.20-31,755.20

Finding the Fourth Proportional to 98,326.40, 147,511.20 and 31,755.20

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Solution

The fourth proportional to 98,326.40, 147,511.20 and 31,755.20 is: 47,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,326.40 : 147,511.20 = 31,755.20 : x
  2. Step 2: Convert to fraction form
    98,326.40/147,511.20 = 31,755.20/x
  3. Step 3: Cross multiply
    98,326.40x = 147,511.20 × 31,755.20
  4. Step 4: Simplify right side
    98,326.40x = 4,684,247,658.24
  5. Step 5: Solve for x
    x = 4,684,247,658.24/98,326.40
  6. Step 6: Final answer
    x = 47,639.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.