Home / 98,538.06-147,784.05-31,961.10

Finding the Fourth Proportional to 98,538.06, 147,784.05 and 31,961.10

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Solution

The fourth proportional to 98,538.06, 147,784.05 and 31,961.10 is: 47,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,538.06 : 147,784.05 = 31,961.10 : x
  2. Step 2: Convert to fraction form
    98,538.06/147,784.05 = 31,961.10/x
  3. Step 3: Cross multiply
    98,538.06x = 147,784.05 × 31,961.10
  4. Step 4: Simplify right side
    98,538.06x = 4,723,340,800.46
  5. Step 5: Solve for x
    x = 4,723,340,800.46/98,538.06
  6. Step 6: Final answer
    x = 47,934.18

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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.