Home / 56,929.80-85,362.70-21,870.60

Finding the Fourth Proportional to 56,929.80, 85,362.70 and 21,870.60

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Solution

The fourth proportional to 56,929.80, 85,362.70 and 21,870.60 is: 32,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,929.80 : 85,362.70 = 21,870.60 : x
  2. Step 2: Convert to fraction form
    56,929.80/85,362.70 = 21,870.60/x
  3. Step 3: Cross multiply
    56,929.80x = 85,362.70 × 21,870.60
  4. Step 4: Simplify right side
    56,929.80x = 1,866,933,466.62
  5. Step 5: Solve for x
    x = 1,866,933,466.62/56,929.80
  6. Step 6: Final answer
    x = 32,793.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.