Home / 87,902.94-121,298.85-49,665.81

Finding the Fourth Proportional to 87,902.94, 121,298.85 and 49,665.81

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Solution

The fourth proportional to 87,902.94, 121,298.85 and 49,665.81 is: 68,534.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,902.94 : 121,298.85 = 49,665.81 : x
  2. Step 2: Convert to fraction form
    87,902.94/121,298.85 = 49,665.81/x
  3. Step 3: Cross multiply
    87,902.94x = 121,298.85 × 49,665.81
  4. Step 4: Simplify right side
    87,902.94x = 6,024,405,637.32
  5. Step 5: Solve for x
    x = 6,024,405,637.32/87,902.94
  6. Step 6: Final answer
    x = 68,534.75

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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.