Home / 97,306.78-134,280.30-57,047.35

Finding the Fourth Proportional to 97,306.78, 134,280.30 and 57,047.35

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Solution

The fourth proportional to 97,306.78, 134,280.30 and 57,047.35 is: 78,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,306.78 : 134,280.30 = 57,047.35 : x
  2. Step 2: Convert to fraction form
    97,306.78/134,280.30 = 57,047.35/x
  3. Step 3: Cross multiply
    97,306.78x = 134,280.30 × 57,047.35
  4. Step 4: Simplify right side
    97,306.78x = 7,660,334,986.97
  5. Step 5: Solve for x
    x = 7,660,334,986.97/97,306.78
  6. Step 6: Final answer
    x = 78,723.55

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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.