Home / 55,089.79-76,021.76-29,938.75

Finding the Fourth Proportional to 55,089.79, 76,021.76 and 29,938.75

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Solution

The fourth proportional to 55,089.79, 76,021.76 and 29,938.75 is: 41,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,089.79 : 76,021.76 = 29,938.75 : x
  2. Step 2: Convert to fraction form
    55,089.79/76,021.76 = 29,938.75/x
  3. Step 3: Cross multiply
    55,089.79x = 76,021.76 × 29,938.75
  4. Step 4: Simplify right side
    55,089.79x = 2,275,996,087.09
  5. Step 5: Solve for x
    x = 2,275,996,087.09/55,089.79
  6. Step 6: Final answer
    x = 41,314.30

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1.5x scale

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.