Home / 47,785.20-71,591.40-42,255.60

Finding the Fourth Proportional to 47,785.20, 71,591.40 and 42,255.60

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Solution

The fourth proportional to 47,785.20, 71,591.40 and 42,255.60 is: 63,307.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,785.20 : 71,591.40 = 42,255.60 : x
  2. Step 2: Convert to fraction form
    47,785.20/71,591.40 = 42,255.60/x
  3. Step 3: Cross multiply
    47,785.20x = 71,591.40 × 42,255.60
  4. Step 4: Simplify right side
    47,785.20x = 3,025,137,561.84
  5. Step 5: Solve for x
    x = 3,025,137,561.84/47,785.20
  6. Step 6: Final answer
    x = 63,307.00

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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.