Home / 47,878.20-71,774.10-31,246.20

Finding the Fourth Proportional to 47,878.20, 71,774.10 and 31,246.20

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Solution

The fourth proportional to 47,878.20, 71,774.10 and 31,246.20 is: 46,841.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,878.20 : 71,774.10 = 31,246.20 : x
  2. Step 2: Convert to fraction form
    47,878.20/71,774.10 = 31,246.20/x
  3. Step 3: Cross multiply
    47,878.20x = 71,774.10 × 31,246.20
  4. Step 4: Simplify right side
    47,878.20x = 2,242,667,883.42
  5. Step 5: Solve for x
    x = 2,242,667,883.42/47,878.20
  6. Step 6: Final answer
    x = 46,841.11

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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.