Home / 55,378.60-76,400.76-34,120.96

Finding the Fourth Proportional to 55,378.60, 76,400.76 and 34,120.96

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Solution

The fourth proportional to 55,378.60, 76,400.76 and 34,120.96 is: 47,073.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,378.60 : 76,400.76 = 34,120.96 : x
  2. Step 2: Convert to fraction form
    55,378.60/76,400.76 = 34,120.96/x
  3. Step 3: Cross multiply
    55,378.60x = 76,400.76 × 34,120.96
  4. Step 4: Simplify right side
    55,378.60x = 2,606,867,275.93
  5. Step 5: Solve for x
    x = 2,606,867,275.93/55,378.60
  6. Step 6: Final answer
    x = 47,073.55

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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.