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Finding the Fourth Proportional to 79,048.89, 109,074.11 and 48,839.13

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Solution

The fourth proportional to 79,048.89, 109,074.11 and 48,839.13 is: 67,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,048.89 : 109,074.11 = 48,839.13 : x
  2. Step 2: Convert to fraction form
    79,048.89/109,074.11 = 48,839.13/x
  3. Step 3: Cross multiply
    79,048.89x = 109,074.11 × 48,839.13
  4. Step 4: Simplify right side
    79,048.89x = 5,327,084,393.73
  5. Step 5: Solve for x
    x = 5,327,084,393.73/79,048.89
  6. Step 6: Final answer
    x = 67,389.74

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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.