Home / 56,902.32-78,528.60-31,751.28

Finding the Fourth Proportional to 56,902.32, 78,528.60 and 31,751.28

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Solution

The fourth proportional to 56,902.32, 78,528.60 and 31,751.28 is: 43,818.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,902.32 : 78,528.60 = 31,751.28 : x
  2. Step 2: Convert to fraction form
    56,902.32/78,528.60 = 31,751.28/x
  3. Step 3: Cross multiply
    56,902.32x = 78,528.60 × 31,751.28
  4. Step 4: Simplify right side
    56,902.32x = 2,493,383,566.61
  5. Step 5: Solve for x
    x = 2,493,383,566.61/56,902.32
  6. Step 6: Final answer
    x = 43,818.66

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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.