Home / 74,604.28-102,955.20-40,613.76

Finding the Fourth Proportional to 74,604.28, 102,955.20 and 40,613.76

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Solution

The fourth proportional to 74,604.28, 102,955.20 and 40,613.76 is: 56,047.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,604.28 : 102,955.20 = 40,613.76 : x
  2. Step 2: Convert to fraction form
    74,604.28/102,955.20 = 40,613.76/x
  3. Step 3: Cross multiply
    74,604.28x = 102,955.20 × 40,613.76
  4. Step 4: Simplify right side
    74,604.28x = 4,181,397,783.55
  5. Step 5: Solve for x
    x = 4,181,397,783.55/74,604.28
  6. Step 6: Final answer
    x = 56,047.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.