Home / 80,711.04-111,364.48-47,170.56

Finding the Fourth Proportional to 80,711.04, 111,364.48 and 47,170.56

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Solution

The fourth proportional to 80,711.04, 111,364.48 and 47,170.56 is: 65,085.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,711.04 : 111,364.48 = 47,170.56 : x
  2. Step 2: Convert to fraction form
    80,711.04/111,364.48 = 47,170.56/x
  3. Step 3: Cross multiply
    80,711.04x = 111,364.48 × 47,170.56
  4. Step 4: Simplify right side
    80,711.04x = 5,253,124,885.71
  5. Step 5: Solve for x
    x = 5,253,124,885.71/80,711.04
  6. Step 6: Final answer
    x = 65,085.58

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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.