Home / 85,026.20-127,455.60-47,604.20

Finding the Fourth Proportional to 85,026.20, 127,455.60 and 47,604.20

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Solution

The fourth proportional to 85,026.20, 127,455.60 and 47,604.20 is: 71,359.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,026.20 : 127,455.60 = 47,604.20 : x
  2. Step 2: Convert to fraction form
    85,026.20/127,455.60 = 47,604.20/x
  3. Step 3: Cross multiply
    85,026.20x = 127,455.60 × 47,604.20
  4. Step 4: Simplify right side
    85,026.20x = 6,067,421,873.52
  5. Step 5: Solve for x
    x = 6,067,421,873.52/85,026.20
  6. Step 6: Final answer
    x = 71,359.44

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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.