Home / 53,988-74,501.28-30,114.48

Finding the Fourth Proportional to 53,988, 74,501.28 and 30,114.48

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Solution

The fourth proportional to 53,988, 74,501.28 and 30,114.48 is: 41,556.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,988 : 74,501.28 = 30,114.48 : x
  2. Step 2: Convert to fraction form
    53,988/74,501.28 = 30,114.48/x
  3. Step 3: Cross multiply
    53,988x = 74,501.28 × 30,114.48
  4. Step 4: Simplify right side
    53,988x = 2,243,567,306.53
  5. Step 5: Solve for x
    x = 2,243,567,306.53/53,988
  6. Step 6: Final answer
    x = 41,556.78

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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.