Home / 74,711.10-111,937.05-48,402.30

Finding the Fourth Proportional to 74,711.10, 111,937.05 and 48,402.30

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Solution

The fourth proportional to 74,711.10, 111,937.05 and 48,402.30 is: 72,519.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,711.10 : 111,937.05 = 48,402.30 : x
  2. Step 2: Convert to fraction form
    74,711.10/111,937.05 = 48,402.30/x
  3. Step 3: Cross multiply
    74,711.10x = 111,937.05 × 48,402.30
  4. Step 4: Simplify right side
    74,711.10x = 5,418,010,675.22
  5. Step 5: Solve for x
    x = 5,418,010,675.22/74,711.10
  6. Step 6: Final answer
    x = 72,519.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.