Home / 74,000.20-102,118.10-40,464.04

Finding the Fourth Proportional to 74,000.20, 102,118.10 and 40,464.04

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Solution

The fourth proportional to 74,000.20, 102,118.10 and 40,464.04 is: 55,839.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,000.20 : 102,118.10 = 40,464.04 : x
  2. Step 2: Convert to fraction form
    74,000.20/102,118.10 = 40,464.04/x
  3. Step 3: Cross multiply
    74,000.20x = 102,118.10 × 40,464.04
  4. Step 4: Simplify right side
    74,000.20x = 4,132,110,883.12
  5. Step 5: Solve for x
    x = 4,132,110,883.12/74,000.20
  6. Step 6: Final answer
    x = 55,839.19

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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.