Home / 88,350.40-121,942.56-58,138.48

Finding the Fourth Proportional to 88,350.40, 121,942.56 and 58,138.48

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Solution

The fourth proportional to 88,350.40, 121,942.56 and 58,138.48 is: 80,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,350.40 : 121,942.56 = 58,138.48 : x
  2. Step 2: Convert to fraction form
    88,350.40/121,942.56 = 58,138.48/x
  3. Step 3: Cross multiply
    88,350.40x = 121,942.56 × 58,138.48
  4. Step 4: Simplify right side
    88,350.40x = 7,089,555,085.71
  5. Step 5: Solve for x
    x = 7,089,555,085.71/88,350.40
  6. Step 6: Final answer
    x = 80,243.61

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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.