Home / 56,724.24-78,278.11-31,573.20

Finding the Fourth Proportional to 56,724.24, 78,278.11 and 31,573.20

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Solution

The fourth proportional to 56,724.24, 78,278.11 and 31,573.20 is: 43,570.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,724.24 : 78,278.11 = 31,573.20 : x
  2. Step 2: Convert to fraction form
    56,724.24/78,278.11 = 31,573.20/x
  3. Step 3: Cross multiply
    56,724.24x = 78,278.11 × 31,573.20
  4. Step 4: Simplify right side
    56,724.24x = 2,471,490,422.65
  5. Step 5: Solve for x
    x = 2,471,490,422.65/56,724.24
  6. Step 6: Final answer
    x = 43,570.27

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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.