Home / 67,551.80-101,364.18-28,136.12

Finding the Fourth Proportional to 67,551.80, 101,364.18 and 28,136.12

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Solution

The fourth proportional to 67,551.80, 101,364.18 and 28,136.12 is: 42,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,551.80 : 101,364.18 = 28,136.12 : x
  2. Step 2: Convert to fraction form
    67,551.80/101,364.18 = 28,136.12/x
  3. Step 3: Cross multiply
    67,551.80x = 101,364.18 × 28,136.12
  4. Step 4: Simplify right side
    67,551.80x = 2,851,994,732.18
  5. Step 5: Solve for x
    x = 2,851,994,732.18/67,551.80
  6. Step 6: Final answer
    x = 42,219.37

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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.