Home / 79,374.04-109,528.20-47,542.12

Finding the Fourth Proportional to 79,374.04, 109,528.20 and 47,542.12

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Solution

The fourth proportional to 79,374.04, 109,528.20 and 47,542.12 is: 65,603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,374.04 : 109,528.20 = 47,542.12 : x
  2. Step 2: Convert to fraction form
    79,374.04/109,528.20 = 47,542.12/x
  3. Step 3: Cross multiply
    79,374.04x = 109,528.20 × 47,542.12
  4. Step 4: Simplify right side
    79,374.04x = 5,207,202,827.78
  5. Step 5: Solve for x
    x = 5,207,202,827.78/79,374.04
  6. Step 6: Final answer
    x = 65,603.35

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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.