Home / 74,766.16-112,167-21,458.80

Finding the Fourth Proportional to 74,766.16, 112,167 and 21,458.80

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Solution

The fourth proportional to 74,766.16, 112,167 and 21,458.80 is: 32,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,766.16 : 112,167 = 21,458.80 : x
  2. Step 2: Convert to fraction form
    74,766.16/112,167 = 21,458.80/x
  3. Step 3: Cross multiply
    74,766.16x = 112,167 × 21,458.80
  4. Step 4: Simplify right side
    74,766.16x = 2,406,969,219.60
  5. Step 5: Solve for x
    x = 2,406,969,219.60/74,766.16
  6. Step 6: Final answer
    x = 32,193.30

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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.