Home / 56,839.08-78,436.52-31,344.64

Finding the Fourth Proportional to 56,839.08, 78,436.52 and 31,344.64

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Solution

The fourth proportional to 56,839.08, 78,436.52 and 31,344.64 is: 43,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,839.08 : 78,436.52 = 31,344.64 : x
  2. Step 2: Convert to fraction form
    56,839.08/78,436.52 = 31,344.64/x
  3. Step 3: Cross multiply
    56,839.08x = 78,436.52 × 31,344.64
  4. Step 4: Simplify right side
    56,839.08x = 2,458,564,246.98
  5. Step 5: Solve for x
    x = 2,458,564,246.98/56,839.08
  6. Step 6: Final answer
    x = 43,254.82

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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.