Home / 56,777.90-78,352.70-31,283.73

Finding the Fourth Proportional to 56,777.90, 78,352.70 and 31,283.73

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Solution

The fourth proportional to 56,777.90, 78,352.70 and 31,283.73 is: 43,171.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,777.90 : 78,352.70 = 31,283.73 : x
  2. Step 2: Convert to fraction form
    56,777.90/78,352.70 = 31,283.73/x
  3. Step 3: Cross multiply
    56,777.90x = 78,352.70 × 31,283.73
  4. Step 4: Simplify right side
    56,777.90x = 2,451,164,555.15
  5. Step 5: Solve for x
    x = 2,451,164,555.15/56,777.90
  6. Step 6: Final answer
    x = 43,171.11

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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.