Home / 81,948.44-113,088.80-47,963.40

Finding the Fourth Proportional to 81,948.44, 113,088.80 and 47,963.40

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Solution

The fourth proportional to 81,948.44, 113,088.80 and 47,963.40 is: 66,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,948.44 : 113,088.80 = 47,963.40 : x
  2. Step 2: Convert to fraction form
    81,948.44/113,088.80 = 47,963.40/x
  3. Step 3: Cross multiply
    81,948.44x = 113,088.80 × 47,963.40
  4. Step 4: Simplify right side
    81,948.44x = 5,424,123,349.92
  5. Step 5: Solve for x
    x = 5,424,123,349.92/81,948.44
  6. Step 6: Final answer
    x = 66,189.46

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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.