Home / 45,247.98-62,478.90-28,272

Finding the Fourth Proportional to 45,247.98, 62,478.90 and 28,272

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Solution

The fourth proportional to 45,247.98, 62,478.90 and 28,272 is: 39,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,247.98 : 62,478.90 = 28,272 : x
  2. Step 2: Convert to fraction form
    45,247.98/62,478.90 = 28,272/x
  3. Step 3: Cross multiply
    45,247.98x = 62,478.90 × 28,272
  4. Step 4: Simplify right side
    45,247.98x = 1,766,403,460.80
  5. Step 5: Solve for x
    x = 1,766,403,460.80/45,247.98
  6. Step 6: Final answer
    x = 39,038.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.