Home / 74,625.24-103,070.32-49,431

Finding the Fourth Proportional to 74,625.24, 103,070.32 and 49,431

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Solution

The fourth proportional to 74,625.24, 103,070.32 and 49,431 is: 68,272.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,625.24 : 103,070.32 = 49,431 : x
  2. Step 2: Convert to fraction form
    74,625.24/103,070.32 = 49,431/x
  3. Step 3: Cross multiply
    74,625.24x = 103,070.32 × 49,431
  4. Step 4: Simplify right side
    74,625.24x = 5,094,868,987.92
  5. Step 5: Solve for x
    x = 5,094,868,987.92/74,625.24
  6. Step 6: Final answer
    x = 68,272.73

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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.