Home / 56,725.04-78,279.78-31,574.56

Finding the Fourth Proportional to 56,725.04, 78,279.78 and 31,574.56

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Solution

The fourth proportional to 56,725.04, 78,279.78 and 31,574.56 is: 43,572.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,725.04 : 78,279.78 = 31,574.56 : x
  2. Step 2: Convert to fraction form
    56,725.04/78,279.78 = 31,574.56/x
  3. Step 3: Cross multiply
    56,725.04x = 78,279.78 × 31,574.56
  4. Step 4: Simplify right side
    56,725.04x = 2,471,649,610.40
  5. Step 5: Solve for x
    x = 2,471,649,610.40/56,725.04
  6. Step 6: Final answer
    x = 43,572.46

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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.