Home / 86,904-119,927.52-49,178.34

Finding the Fourth Proportional to 86,904, 119,927.52 and 49,178.34

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Solution

The fourth proportional to 86,904, 119,927.52 and 49,178.34 is: 67,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,904 : 119,927.52 = 49,178.34 : x
  2. Step 2: Convert to fraction form
    86,904/119,927.52 = 49,178.34/x
  3. Step 3: Cross multiply
    86,904x = 119,927.52 × 49,178.34
  4. Step 4: Simplify right side
    86,904x = 5,897,836,353.92
  5. Step 5: Solve for x
    x = 5,897,836,353.92/86,904
  6. Step 6: Final answer
    x = 67,866.11

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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.