Home / 47,378.28-71,137.35-31,681.20

Finding the Fourth Proportional to 47,378.28, 71,137.35 and 31,681.20

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Solution

The fourth proportional to 47,378.28, 71,137.35 and 31,681.20 is: 47,568.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,378.28 : 71,137.35 = 31,681.20 : x
  2. Step 2: Convert to fraction form
    47,378.28/71,137.35 = 31,681.20/x
  3. Step 3: Cross multiply
    47,378.28x = 71,137.35 × 31,681.20
  4. Step 4: Simplify right side
    47,378.28x = 2,253,716,612.82
  5. Step 5: Solve for x
    x = 2,253,716,612.82/47,378.28
  6. Step 6: Final answer
    x = 47,568.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.