Home / 90,851.90-136,293.40-30,874.03

Finding the Fourth Proportional to 90,851.90, 136,293.40 and 30,874.03

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Solution

The fourth proportional to 90,851.90, 136,293.40 and 30,874.03 is: 46,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,851.90 : 136,293.40 = 30,874.03 : x
  2. Step 2: Convert to fraction form
    90,851.90/136,293.40 = 30,874.03/x
  3. Step 3: Cross multiply
    90,851.90x = 136,293.40 × 30,874.03
  4. Step 4: Simplify right side
    90,851.90x = 4,207,926,218.26
  5. Step 5: Solve for x
    x = 4,207,926,218.26/90,851.90
  6. Step 6: Final answer
    x = 46,316.33

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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.