Home / 90,664.96-136,024.48-43,315.52

Finding the Fourth Proportional to 90,664.96, 136,024.48 and 43,315.52

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Solution

The fourth proportional to 90,664.96, 136,024.48 and 43,315.52 is: 64,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,664.96 : 136,024.48 = 43,315.52 : x
  2. Step 2: Convert to fraction form
    90,664.96/136,024.48 = 43,315.52/x
  3. Step 3: Cross multiply
    90,664.96x = 136,024.48 × 43,315.52
  4. Step 4: Simplify right side
    90,664.96x = 5,891,971,083.93
  5. Step 5: Solve for x
    x = 5,891,971,083.93/90,664.96
  6. Step 6: Final answer
    x = 64,986.20

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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.