Home / 80,822.37-121,248.90-30,898.32

Finding the Fourth Proportional to 80,822.37, 121,248.90 and 30,898.32

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Solution

The fourth proportional to 80,822.37, 121,248.90 and 30,898.32 is: 46,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,822.37 : 121,248.90 = 30,898.32 : x
  2. Step 2: Convert to fraction form
    80,822.37/121,248.90 = 30,898.32/x
  3. Step 3: Cross multiply
    80,822.37x = 121,248.90 × 30,898.32
  4. Step 4: Simplify right side
    80,822.37x = 3,746,387,311.85
  5. Step 5: Solve for x
    x = 3,746,387,311.85/80,822.37
  6. Step 6: Final answer
    x = 46,353.35

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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.