Home / 91,370.34-126,129.93-55,571.85

Finding the Fourth Proportional to 91,370.34, 126,129.93 and 55,571.85

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Solution

The fourth proportional to 91,370.34, 126,129.93 and 55,571.85 is: 76,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,370.34 : 126,129.93 = 55,571.85 : x
  2. Step 2: Convert to fraction form
    91,370.34/126,129.93 = 55,571.85/x
  3. Step 3: Cross multiply
    91,370.34x = 126,129.93 × 55,571.85
  4. Step 4: Simplify right side
    91,370.34x = 7,009,273,550.47
  5. Step 5: Solve for x
    x = 7,009,273,550.47/91,370.34
  6. Step 6: Final answer
    x = 76,712.79

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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.