Home / 54,711.46-81,985.08-42,212.74

Finding the Fourth Proportional to 54,711.46, 81,985.08 and 42,212.74

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Solution

The fourth proportional to 54,711.46, 81,985.08 and 42,212.74 is: 63,255.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,711.46 : 81,985.08 = 42,212.74 : x
  2. Step 2: Convert to fraction form
    54,711.46/81,985.08 = 42,212.74/x
  3. Step 3: Cross multiply
    54,711.46x = 81,985.08 × 42,212.74
  4. Step 4: Simplify right side
    54,711.46x = 3,460,814,865.92
  5. Step 5: Solve for x
    x = 3,460,814,865.92/54,711.46
  6. Step 6: Final answer
    x = 63,255.76

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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.