Home / 91,788.18-137,689.11-35,674.26

Finding the Fourth Proportional to 91,788.18, 137,689.11 and 35,674.26

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Solution

The fourth proportional to 91,788.18, 137,689.11 and 35,674.26 is: 53,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,788.18 : 137,689.11 = 35,674.26 : x
  2. Step 2: Convert to fraction form
    91,788.18/137,689.11 = 35,674.26/x
  3. Step 3: Cross multiply
    91,788.18x = 137,689.11 × 35,674.26
  4. Step 4: Simplify right side
    91,788.18x = 4,911,957,109.31
  5. Step 5: Solve for x
    x = 4,911,957,109.31/91,788.18
  6. Step 6: Final answer
    x = 53,514.05

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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.