Home / 91,734.60-126,540.04-57,689.22

Finding the Fourth Proportional to 91,734.60, 126,540.04 and 57,689.22

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Solution

The fourth proportional to 91,734.60, 126,540.04 and 57,689.22 is: 79,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,734.60 : 126,540.04 = 57,689.22 : x
  2. Step 2: Convert to fraction form
    91,734.60/126,540.04 = 57,689.22/x
  3. Step 3: Cross multiply
    91,734.60x = 126,540.04 × 57,689.22
  4. Step 4: Simplify right side
    91,734.60x = 7,299,996,206.37
  5. Step 5: Solve for x
    x = 7,299,996,206.37/91,734.60
  6. Step 6: Final answer
    x = 79,577.35

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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.