Home / 79,275.60-109,397.04-47,425.68

Finding the Fourth Proportional to 79,275.60, 109,397.04 and 47,425.68

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Solution

The fourth proportional to 79,275.60, 109,397.04 and 47,425.68 is: 65,445.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,275.60 : 109,397.04 = 47,425.68 : x
  2. Step 2: Convert to fraction form
    79,275.60/109,397.04 = 47,425.68/x
  3. Step 3: Cross multiply
    79,275.60x = 109,397.04 × 47,425.68
  4. Step 4: Simplify right side
    79,275.60x = 5,188,229,011.99
  5. Step 5: Solve for x
    x = 5,188,229,011.99/79,275.60
  6. Step 6: Final answer
    x = 65,445.47

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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.