Home / 40,725.80-61,054.02-18,531.40

Finding the Fourth Proportional to 40,725.80, 61,054.02 and 18,531.40

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Solution

The fourth proportional to 40,725.80, 61,054.02 and 18,531.40 is: 27,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,725.80 : 61,054.02 = 18,531.40 : x
  2. Step 2: Convert to fraction form
    40,725.80/61,054.02 = 18,531.40/x
  3. Step 3: Cross multiply
    40,725.80x = 61,054.02 × 18,531.40
  4. Step 4: Simplify right side
    40,725.80x = 1,131,416,466.23
  5. Step 5: Solve for x
    x = 1,131,416,466.23/40,725.80
  6. Step 6: Final answer
    x = 27,781.32

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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.