Home / 56,745.24-78,305.76-31,251.12

Finding the Fourth Proportional to 56,745.24, 78,305.76 and 31,251.12

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Solution

The fourth proportional to 56,745.24, 78,305.76 and 31,251.12 is: 43,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,745.24 : 78,305.76 = 31,251.12 : x
  2. Step 2: Convert to fraction form
    56,745.24/78,305.76 = 31,251.12/x
  3. Step 3: Cross multiply
    56,745.24x = 78,305.76 × 31,251.12
  4. Step 4: Simplify right side
    56,745.24x = 2,447,142,702.45
  5. Step 5: Solve for x
    x = 2,447,142,702.45/56,745.24
  6. Step 6: Final answer
    x = 43,125.07

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1.5x scale

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.