Home / 42,254.18-63,377.49-12,678.62

Finding the Fourth Proportional to 42,254.18, 63,377.49 and 12,678.62

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Solution

The fourth proportional to 42,254.18, 63,377.49 and 12,678.62 is: 19,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,254.18 : 63,377.49 = 12,678.62 : x
  2. Step 2: Convert to fraction form
    42,254.18/63,377.49 = 12,678.62/x
  3. Step 3: Cross multiply
    42,254.18x = 63,377.49 × 12,678.62
  4. Step 4: Simplify right side
    42,254.18x = 803,539,112.26
  5. Step 5: Solve for x
    x = 803,539,112.26/42,254.18
  6. Step 6: Final answer
    x = 19,016.80

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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.