Home / 91,138.44-125,755.95-60,875.22

Finding the Fourth Proportional to 91,138.44, 125,755.95 and 60,875.22

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Solution

The fourth proportional to 91,138.44, 125,755.95 and 60,875.22 is: 83,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,138.44 : 125,755.95 = 60,875.22 : x
  2. Step 2: Convert to fraction form
    91,138.44/125,755.95 = 60,875.22/x
  3. Step 3: Cross multiply
    91,138.44x = 125,755.95 × 60,875.22
  4. Step 4: Simplify right side
    91,138.44x = 7,655,421,122.56
  5. Step 5: Solve for x
    x = 7,655,421,122.56/91,138.44
  6. Step 6: Final answer
    x = 83,997.72

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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.