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Finding the Fourth Proportional to 56,080, 77,391.52 and 36,242.56

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Solution

The fourth proportional to 56,080, 77,391.52 and 36,242.56 is: 50,015.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,080 : 77,391.52 = 36,242.56 : x
  2. Step 2: Convert to fraction form
    56,080/77,391.52 = 36,242.56/x
  3. Step 3: Cross multiply
    56,080x = 77,391.52 × 36,242.56
  4. Step 4: Simplify right side
    56,080x = 2,804,866,807.09
  5. Step 5: Solve for x
    x = 2,804,866,807.09/56,080
  6. Step 6: Final answer
    x = 50,015.46

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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.