Home / 79,387.84-109,549.20-43,572.16

Finding the Fourth Proportional to 79,387.84, 109,549.20 and 43,572.16

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Solution

The fourth proportional to 79,387.84, 109,549.20 and 43,572.16 is: 60,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,387.84 : 109,549.20 = 43,572.16 : x
  2. Step 2: Convert to fraction form
    79,387.84/109,549.20 = 43,572.16/x
  3. Step 3: Cross multiply
    79,387.84x = 109,549.20 × 43,572.16
  4. Step 4: Simplify right side
    79,387.84x = 4,773,295,270.27
  5. Step 5: Solve for x
    x = 4,773,295,270.27/79,387.84
  6. Step 6: Final answer
    x = 60,126.28

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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.