Home / 56,728.79-78,285.08-31,234.62

Finding the Fourth Proportional to 56,728.79, 78,285.08 and 31,234.62

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Solution

The fourth proportional to 56,728.79, 78,285.08 and 31,234.62 is: 43,103.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,728.79 : 78,285.08 = 31,234.62 : x
  2. Step 2: Convert to fraction form
    56,728.79/78,285.08 = 31,234.62/x
  3. Step 3: Cross multiply
    56,728.79x = 78,285.08 × 31,234.62
  4. Step 4: Simplify right side
    56,728.79x = 2,445,204,876.95
  5. Step 5: Solve for x
    x = 2,445,204,876.95/56,728.79
  6. Step 6: Final answer
    x = 43,103.42

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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.