Home / 45,211.65-67,721.76-28,563.18

Finding the Fourth Proportional to 45,211.65, 67,721.76 and 28,563.18

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Solution

The fourth proportional to 45,211.65, 67,721.76 and 28,563.18 is: 42,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,211.65 : 67,721.76 = 28,563.18 : x
  2. Step 2: Convert to fraction form
    45,211.65/67,721.76 = 28,563.18/x
  3. Step 3: Cross multiply
    45,211.65x = 67,721.76 × 28,563.18
  4. Step 4: Simplify right side
    45,211.65x = 1,934,348,820.80
  5. Step 5: Solve for x
    x = 1,934,348,820.80/45,211.65
  6. Step 6: Final answer
    x = 42,784.30

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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.