Home / 40,877.28-61,296.48-28,387.20

Finding the Fourth Proportional to 40,877.28, 61,296.48 and 28,387.20

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Solution

The fourth proportional to 40,877.28, 61,296.48 and 28,387.20 is: 42,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,877.28 : 61,296.48 = 28,387.20 : x
  2. Step 2: Convert to fraction form
    40,877.28/61,296.48 = 28,387.20/x
  3. Step 3: Cross multiply
    40,877.28x = 61,296.48 × 28,387.20
  4. Step 4: Simplify right side
    40,877.28x = 1,740,035,437.06
  5. Step 5: Solve for x
    x = 1,740,035,437.06/40,877.28
  6. Step 6: Final answer
    x = 42,567.30

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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.