Home / 98,435.93-147,677.38-31,876.20

Finding the Fourth Proportional to 98,435.93, 147,677.38 and 31,876.20

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Solution

The fourth proportional to 98,435.93, 147,677.38 and 31,876.20 is: 47,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,435.93 : 147,677.38 = 31,876.20 : x
  2. Step 2: Convert to fraction form
    98,435.93/147,677.38 = 31,876.20/x
  3. Step 3: Cross multiply
    98,435.93x = 147,677.38 × 31,876.20
  4. Step 4: Simplify right side
    98,435.93x = 4,707,393,620.67
  5. Step 5: Solve for x
    x = 4,707,393,620.67/98,435.93
  6. Step 6: Final answer
    x = 47,821.91

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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.