Home / 53,781.09-74,218-29,907.55

Finding the Fourth Proportional to 53,781.09, 74,218 and 29,907.55

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Solution

The fourth proportional to 53,781.09, 74,218 and 29,907.55 is: 41,272.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,781.09 : 74,218 = 29,907.55 : x
  2. Step 2: Convert to fraction form
    53,781.09/74,218 = 29,907.55/x
  3. Step 3: Cross multiply
    53,781.09x = 74,218 × 29,907.55
  4. Step 4: Simplify right side
    53,781.09x = 2,219,678,545.90
  5. Step 5: Solve for x
    x = 2,219,678,545.90/53,781.09
  6. Step 6: Final answer
    x = 41,272.47

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1.5x scale

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.