Home / 72,963.20-100,689.21-41,132.10

Finding the Fourth Proportional to 72,963.20, 100,689.21 and 41,132.10

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Solution

The fourth proportional to 72,963.20, 100,689.21 and 41,132.10 is: 56,762.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,963.20 : 100,689.21 = 41,132.10 : x
  2. Step 2: Convert to fraction form
    72,963.20/100,689.21 = 41,132.10/x
  3. Step 3: Cross multiply
    72,963.20x = 100,689.21 × 41,132.10
  4. Step 4: Simplify right side
    72,963.20x = 4,141,558,654.64
  5. Step 5: Solve for x
    x = 4,141,558,654.64/72,963.20
  6. Step 6: Final answer
    x = 56,762.30

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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.