Home / 56,702.27-78,254.00-31,213.68

Finding the Fourth Proportional to 56,702.27, 78,254.00 and 31,213.68

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Solution

The fourth proportional to 56,702.27, 78,254.00 and 31,213.68 is: 43,077.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,702.27 : 78,254.00 = 31,213.68 : x
  2. Step 2: Convert to fraction form
    56,702.27/78,254.00 = 31,213.68/x
  3. Step 3: Cross multiply
    56,702.27x = 78,254.00 × 31,213.68
  4. Step 4: Simplify right side
    56,702.27x = 2,442,595,158.65
  5. Step 5: Solve for x
    x = 2,442,595,158.65/56,702.27
  6. Step 6: Final answer
    x = 43,077.56

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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.