Home / 74,160.11-102,341.12-40,168.46

Finding the Fourth Proportional to 74,160.11, 102,341.12 and 40,168.46

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Solution

The fourth proportional to 74,160.11, 102,341.12 and 40,168.46 is: 55,432.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,160.11 : 102,341.12 = 40,168.46 : x
  2. Step 2: Convert to fraction form
    74,160.11/102,341.12 = 40,168.46/x
  3. Step 3: Cross multiply
    74,160.11x = 102,341.12 × 40,168.46
  4. Step 4: Simplify right side
    74,160.11x = 4,110,884,472.53
  5. Step 5: Solve for x
    x = 4,110,884,472.53/74,160.11
  6. Step 6: Final answer
    x = 55,432.56

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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.