Home / 74,848.72-103,115.78-52,146.65

Finding the Fourth Proportional to 74,848.72, 103,115.78 and 52,146.65

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Solution

The fourth proportional to 74,848.72, 103,115.78 and 52,146.65 is: 71,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,848.72 : 103,115.78 = 52,146.65 : x
  2. Step 2: Convert to fraction form
    74,848.72/103,115.78 = 52,146.65/x
  3. Step 3: Cross multiply
    74,848.72x = 103,115.78 × 52,146.65
  4. Step 4: Simplify right side
    74,848.72x = 5,377,141,712.82
  5. Step 5: Solve for x
    x = 5,377,141,712.82/74,848.72
  6. Step 6: Final answer
    x = 71,840.13

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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.