Home / 47,251.79-70,879.04-12,191.45

Finding the Fourth Proportional to 47,251.79, 70,879.04 and 12,191.45

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Solution

The fourth proportional to 47,251.79, 70,879.04 and 12,191.45 is: 18,287.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,251.79 : 70,879.04 = 12,191.45 : x
  2. Step 2: Convert to fraction form
    47,251.79/70,879.04 = 12,191.45/x
  3. Step 3: Cross multiply
    47,251.79x = 70,879.04 × 12,191.45
  4. Step 4: Simplify right side
    47,251.79x = 864,117,856.86
  5. Step 5: Solve for x
    x = 864,117,856.86/47,251.79
  6. Step 6: Final answer
    x = 18,287.52

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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.