Home / 53,990.72-74,507.28-29,791.12

Finding the Fourth Proportional to 53,990.72, 74,507.28 and 29,791.12

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Solution

The fourth proportional to 53,990.72, 74,507.28 and 29,791.12 is: 41,111.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,990.72 : 74,507.28 = 29,791.12 : x
  2. Step 2: Convert to fraction form
    53,990.72/74,507.28 = 29,791.12/x
  3. Step 3: Cross multiply
    53,990.72x = 74,507.28 × 29,791.12
  4. Step 4: Simplify right side
    53,990.72x = 2,219,655,319.35
  5. Step 5: Solve for x
    x = 2,219,655,319.35/53,990.72
  6. Step 6: Final answer
    x = 41,111.79

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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.