Home / 91,120.52-125,749.32-52,877.18

Finding the Fourth Proportional to 91,120.52, 125,749.32 and 52,877.18

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Solution

The fourth proportional to 91,120.52, 125,749.32 and 52,877.18 is: 72,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,120.52 : 125,749.32 = 52,877.18 : x
  2. Step 2: Convert to fraction form
    91,120.52/125,749.32 = 52,877.18/x
  3. Step 3: Cross multiply
    91,120.52x = 125,749.32 × 52,877.18
  4. Step 4: Simplify right side
    91,120.52x = 6,649,269,428.52
  5. Step 5: Solve for x
    x = 6,649,269,428.52/91,120.52
  6. Step 6: Final answer
    x = 72,972.25

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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.