Home / 52,079.32-78,146.52-28,403.92

Finding the Fourth Proportional to 52,079.32, 78,146.52 and 28,403.92

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Solution

The fourth proportional to 52,079.32, 78,146.52 and 28,403.92 is: 42,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,079.32 : 78,146.52 = 28,403.92 : x
  2. Step 2: Convert to fraction form
    52,079.32/78,146.52 = 28,403.92/x
  3. Step 3: Cross multiply
    52,079.32x = 78,146.52 × 28,403.92
  4. Step 4: Simplify right side
    52,079.32x = 2,219,667,502.36
  5. Step 5: Solve for x
    x = 2,219,667,502.36/52,079.32
  6. Step 6: Final answer
    x = 42,620.90

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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.