Home / 87,293.76-120,436.65-50,986.86

Finding the Fourth Proportional to 87,293.76, 120,436.65 and 50,986.86

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Solution

The fourth proportional to 87,293.76, 120,436.65 and 50,986.86 is: 70,345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,293.76 : 120,436.65 = 50,986.86 : x
  2. Step 2: Convert to fraction form
    87,293.76/120,436.65 = 50,986.86/x
  3. Step 3: Cross multiply
    87,293.76x = 120,436.65 × 50,986.86
  4. Step 4: Simplify right side
    87,293.76x = 6,140,686,612.42
  5. Step 5: Solve for x
    x = 6,140,686,612.42/87,293.76
  6. Step 6: Final answer
    x = 70,345.08

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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.