Home / 91,613.01-137,415.92-38,291.22

Finding the Fourth Proportional to 91,613.01, 137,415.92 and 38,291.22

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Solution

The fourth proportional to 91,613.01, 137,415.92 and 38,291.22 is: 57,435.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,613.01 : 137,415.92 = 38,291.22 : x
  2. Step 2: Convert to fraction form
    91,613.01/137,415.92 = 38,291.22/x
  3. Step 3: Cross multiply
    91,613.01x = 137,415.92 × 38,291.22
  4. Step 4: Simplify right side
    91,613.01x = 5,261,823,031.32
  5. Step 5: Solve for x
    x = 5,261,823,031.32/91,613.01
  6. Step 6: Final answer
    x = 57,435.32

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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.