Home / 75,672.39-113,328.77-38,114.31

Finding the Fourth Proportional to 75,672.39, 113,328.77 and 38,114.31

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Solution

The fourth proportional to 75,672.39, 113,328.77 and 38,114.31 is: 57,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,672.39 : 113,328.77 = 38,114.31 : x
  2. Step 2: Convert to fraction form
    75,672.39/113,328.77 = 38,114.31/x
  3. Step 3: Cross multiply
    75,672.39x = 113,328.77 × 38,114.31
  4. Step 4: Simplify right side
    75,672.39x = 4,319,447,681.13
  5. Step 5: Solve for x
    x = 4,319,447,681.13/75,672.39
  6. Step 6: Final answer
    x = 57,080.89

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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.