Home / 61,180.20-84,445.19-39,959.01

Finding the Fourth Proportional to 61,180.20, 84,445.19 and 39,959.01

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Solution

The fourth proportional to 61,180.20, 84,445.19 and 39,959.01 is: 55,154.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,180.20 : 84,445.19 = 39,959.01 : x
  2. Step 2: Convert to fraction form
    61,180.20/84,445.19 = 39,959.01/x
  3. Step 3: Cross multiply
    61,180.20x = 84,445.19 × 39,959.01
  4. Step 4: Simplify right side
    61,180.20x = 3,374,345,991.87
  5. Step 5: Solve for x
    x = 3,374,345,991.87/61,180.20
  6. Step 6: Final answer
    x = 55,154.22

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1.5x scale

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.