Home / 92,399.20-138,613.20-30,055.12

Finding the Fourth Proportional to 92,399.20, 138,613.20 and 30,055.12

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Solution

The fourth proportional to 92,399.20, 138,613.20 and 30,055.12 is: 45,087.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,399.20 : 138,613.20 = 30,055.12 : x
  2. Step 2: Convert to fraction form
    92,399.20/138,613.20 = 30,055.12/x
  3. Step 3: Cross multiply
    92,399.20x = 138,613.20 × 30,055.12
  4. Step 4: Simplify right side
    92,399.20x = 4,166,036,359.58
  5. Step 5: Solve for x
    x = 4,166,036,359.58/92,399.20
  6. Step 6: Final answer
    x = 45,087.36

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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.