Home / 52,119.16-78,187.04-18,835.85

Finding the Fourth Proportional to 52,119.16, 78,187.04 and 18,835.85

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Solution

The fourth proportional to 52,119.16, 78,187.04 and 18,835.85 is: 28,256.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,119.16 : 78,187.04 = 18,835.85 : x
  2. Step 2: Convert to fraction form
    52,119.16/78,187.04 = 18,835.85/x
  3. Step 3: Cross multiply
    52,119.16x = 78,187.04 × 18,835.85
  4. Step 4: Simplify right side
    52,119.16x = 1,472,719,357.38
  5. Step 5: Solve for x
    x = 1,472,719,357.38/52,119.16
  6. Step 6: Final answer
    x = 28,256.77

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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.