Home / 51,294.30-76,766.40-42,983.70

Finding the Fourth Proportional to 51,294.30, 76,766.40 and 42,983.70

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Solution

The fourth proportional to 51,294.30, 76,766.40 and 42,983.70 is: 64,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,294.30 : 76,766.40 = 42,983.70 : x
  2. Step 2: Convert to fraction form
    51,294.30/76,766.40 = 42,983.70/x
  3. Step 3: Cross multiply
    51,294.30x = 76,766.40 × 42,983.70
  4. Step 4: Simplify right side
    51,294.30x = 3,299,703,907.68
  5. Step 5: Solve for x
    x = 3,299,703,907.68/51,294.30
  6. Step 6: Final answer
    x = 64,328.86

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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.