Home / 276,725.15-415,088.03-77,045.97

Finding the Fourth Proportional to 276,725.15, 415,088.03 and 77,045.97

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Solution

The fourth proportional to 276,725.15, 415,088.03 and 77,045.97 is: 115,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,725.15 : 415,088.03 = 77,045.97 : x
  2. Step 2: Convert to fraction form
    276,725.15/415,088.03 = 77,045.97/x
  3. Step 3: Cross multiply
    276,725.15x = 415,088.03 × 77,045.97
  4. Step 4: Simplify right side
    276,725.15x = 31,980,859,906.74
  5. Step 5: Solve for x
    x = 31,980,859,906.74/276,725.15
  6. Step 6: Final answer
    x = 115,569.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.