Home / 80,827.87-121,242.03-28,237.35

Finding the Fourth Proportional to 80,827.87, 121,242.03 and 28,237.35

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Solution

The fourth proportional to 80,827.87, 121,242.03 and 28,237.35 is: 42,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,827.87 : 121,242.03 = 28,237.35 : x
  2. Step 2: Convert to fraction form
    80,827.87/121,242.03 = 28,237.35/x
  3. Step 3: Cross multiply
    80,827.87x = 121,242.03 × 28,237.35
  4. Step 4: Simplify right side
    80,827.87x = 3,423,553,529.93
  5. Step 5: Solve for x
    x = 3,423,553,529.93/80,827.87
  6. Step 6: Final answer
    x = 42,356.10

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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.