Home / 55,147.79-76,129.76-35,287.31

Finding the Fourth Proportional to 55,147.79, 76,129.76 and 35,287.31

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Solution

The fourth proportional to 55,147.79, 76,129.76 and 35,287.31 is: 48,713.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,147.79 : 76,129.76 = 35,287.31 : x
  2. Step 2: Convert to fraction form
    55,147.79/76,129.76 = 35,287.31/x
  3. Step 3: Cross multiply
    55,147.79x = 76,129.76 × 35,287.31
  4. Step 4: Simplify right side
    55,147.79x = 2,686,414,264.91
  5. Step 5: Solve for x
    x = 2,686,414,264.91/55,147.79
  6. Step 6: Final answer
    x = 48,713.00

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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.