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Finding the Fourth Proportional to 44,480, 61,353.24 and 28,539.20

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Solution

The fourth proportional to 44,480, 61,353.24 and 28,539.20 is: 39,365.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,480 : 61,353.24 = 28,539.20 : x
  2. Step 2: Convert to fraction form
    44,480/61,353.24 = 28,539.20/x
  3. Step 3: Cross multiply
    44,480x = 61,353.24 × 28,539.20
  4. Step 4: Simplify right side
    44,480x = 1,750,972,387.01
  5. Step 5: Solve for x
    x = 1,750,972,387.01/44,480
  6. Step 6: Final answer
    x = 39,365.39

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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.