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Finding the Fourth Proportional to 92,458.80, 138,697.92 and 30,114.72

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Solution

The fourth proportional to 92,458.80, 138,697.92 and 30,114.72 is: 45,175.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,458.80 : 138,697.92 = 30,114.72 : x
  2. Step 2: Convert to fraction form
    92,458.80/138,697.92 = 30,114.72/x
  3. Step 3: Cross multiply
    92,458.80x = 138,697.92 × 30,114.72
  4. Step 4: Simplify right side
    92,458.80x = 4,176,849,025.38
  5. Step 5: Solve for x
    x = 4,176,849,025.38/92,458.80
  6. Step 6: Final answer
    x = 45,175.25

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1.5x scale

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.