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Finding the Fourth Proportional to 98,330.60, 147,467.10 and 45,727.40

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Solution

The fourth proportional to 98,330.60, 147,467.10 and 45,727.40 is: 68,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,330.60 : 147,467.10 = 45,727.40 : x
  2. Step 2: Convert to fraction form
    98,330.60/147,467.10 = 45,727.40/x
  3. Step 3: Cross multiply
    98,330.60x = 147,467.10 × 45,727.40
  4. Step 4: Simplify right side
    98,330.60x = 6,743,287,068.54
  5. Step 5: Solve for x
    x = 6,743,287,068.54/98,330.60
  6. Step 6: Final answer
    x = 68,577.71

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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.