Home / 72,522.10-100,080.21-40,691.11

Finding the Fourth Proportional to 72,522.10, 100,080.21 and 40,691.11

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Solution

The fourth proportional to 72,522.10, 100,080.21 and 40,691.11 is: 56,153.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,522.10 : 100,080.21 = 40,691.11 : x
  2. Step 2: Convert to fraction form
    72,522.10/100,080.21 = 40,691.11/x
  3. Step 3: Cross multiply
    72,522.10x = 100,080.21 × 40,691.11
  4. Step 4: Simplify right side
    72,522.10x = 4,072,374,833.93
  5. Step 5: Solve for x
    x = 4,072,374,833.93/72,522.10
  6. Step 6: Final answer
    x = 56,153.57

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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.