Home / 87,937.86-121,362.93-50,217.78

Finding the Fourth Proportional to 87,937.86, 121,362.93 and 50,217.78

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Solution

The fourth proportional to 87,937.86, 121,362.93 and 50,217.78 is: 69,305.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,937.86 : 121,362.93 = 50,217.78 : x
  2. Step 2: Convert to fraction form
    87,937.86/121,362.93 = 50,217.78/x
  3. Step 3: Cross multiply
    87,937.86x = 121,362.93 × 50,217.78
  4. Step 4: Simplify right side
    87,937.86x = 6,094,576,918.90
  5. Step 5: Solve for x
    x = 6,094,576,918.90/87,937.86
  6. Step 6: Final answer
    x = 69,305.50

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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.