Home / 77,847.72-107,430.18-43,856.61

Finding the Fourth Proportional to 77,847.72, 107,430.18 and 43,856.61

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Solution

The fourth proportional to 77,847.72, 107,430.18 and 43,856.61 is: 60,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,847.72 : 107,430.18 = 43,856.61 : x
  2. Step 2: Convert to fraction form
    77,847.72/107,430.18 = 43,856.61/x
  3. Step 3: Cross multiply
    77,847.72x = 107,430.18 × 43,856.61
  4. Step 4: Simplify right side
    77,847.72x = 4,711,523,707.92
  5. Step 5: Solve for x
    x = 4,711,523,707.92/77,847.72
  6. Step 6: Final answer
    x = 60,522.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.