Home / 54,315.64-81,101.89-48,656.78

Finding the Fourth Proportional to 54,315.64, 81,101.89 and 48,656.78

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Solution

The fourth proportional to 54,315.64, 81,101.89 and 48,656.78 is: 72,652.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,315.64 : 81,101.89 = 48,656.78 : x
  2. Step 2: Convert to fraction form
    54,315.64/81,101.89 = 48,656.78/x
  3. Step 3: Cross multiply
    54,315.64x = 81,101.89 × 48,656.78
  4. Step 4: Simplify right side
    54,315.64x = 3,946,156,819.31
  5. Step 5: Solve for x
    x = 3,946,156,819.31/54,315.64
  6. Step 6: Final answer
    x = 72,652.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.