Home / 90,052.80-124,272.30-49,768.89

Finding the Fourth Proportional to 90,052.80, 124,272.30 and 49,768.89

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Solution

The fourth proportional to 90,052.80, 124,272.30 and 49,768.89 is: 68,680.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,052.80 : 124,272.30 = 49,768.89 : x
  2. Step 2: Convert to fraction form
    90,052.80/124,272.30 = 49,768.89/x
  3. Step 3: Cross multiply
    90,052.80x = 124,272.30 × 49,768.89
  4. Step 4: Simplify right side
    90,052.80x = 6,184,894,428.75
  5. Step 5: Solve for x
    x = 6,184,894,428.75/90,052.80
  6. Step 6: Final answer
    x = 68,680.76

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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.