Home / 51,248.40-76,872.60-47,749.20

Finding the Fourth Proportional to 51,248.40, 76,872.60 and 47,749.20

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Solution

The fourth proportional to 51,248.40, 76,872.60 and 47,749.20 is: 71,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,248.40 : 76,872.60 = 47,749.20 : x
  2. Step 2: Convert to fraction form
    51,248.40/76,872.60 = 47,749.20/x
  3. Step 3: Cross multiply
    51,248.40x = 76,872.60 × 47,749.20
  4. Step 4: Simplify right side
    51,248.40x = 3,670,605,151.92
  5. Step 5: Solve for x
    x = 3,670,605,151.92/51,248.40
  6. Step 6: Final answer
    x = 71,623.80

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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.