Home / 87,903.08-121,276.41-49,657.04

Finding the Fourth Proportional to 87,903.08, 121,276.41 and 49,657.04

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Solution

The fourth proportional to 87,903.08, 121,276.41 and 49,657.04 is: 68,509.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,903.08 : 121,276.41 = 49,657.04 : x
  2. Step 2: Convert to fraction form
    87,903.08/121,276.41 = 49,657.04/x
  3. Step 3: Cross multiply
    87,903.08x = 121,276.41 × 49,657.04
  4. Step 4: Simplify right side
    87,903.08x = 6,022,227,542.43
  5. Step 5: Solve for x
    x = 6,022,227,542.43/87,903.08
  6. Step 6: Final answer
    x = 68,509.86

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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.