Home / 54,710.12-82,065.20-42,248.36

Finding the Fourth Proportional to 54,710.12, 82,065.20 and 42,248.36

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Solution

The fourth proportional to 54,710.12, 82,065.20 and 42,248.36 is: 63,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,710.12 : 82,065.20 = 42,248.36 : x
  2. Step 2: Convert to fraction form
    54,710.12/82,065.20 = 42,248.36/x
  3. Step 3: Cross multiply
    54,710.12x = 82,065.20 × 42,248.36
  4. Step 4: Simplify right side
    54,710.12x = 3,467,119,491.50
  5. Step 5: Solve for x
    x = 3,467,119,491.50/54,710.12
  6. Step 6: Final answer
    x = 63,372.55

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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.