Home / 74,118.80-111,184.35-21,528.28

Finding the Fourth Proportional to 74,118.80, 111,184.35 and 21,528.28

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Solution

The fourth proportional to 74,118.80, 111,184.35 and 21,528.28 is: 32,294.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,118.80 : 111,184.35 = 21,528.28 : x
  2. Step 2: Convert to fraction form
    74,118.80/111,184.35 = 21,528.28/x
  3. Step 3: Cross multiply
    74,118.80x = 111,184.35 × 21,528.28
  4. Step 4: Simplify right side
    74,118.80x = 2,393,607,876.67
  5. Step 5: Solve for x
    x = 2,393,607,876.67/74,118.80
  6. Step 6: Final answer
    x = 32,294.21

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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.