Home / 75,478.17-113,269.52-28,136.50

Finding the Fourth Proportional to 75,478.17, 113,269.52 and 28,136.50

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Solution

The fourth proportional to 75,478.17, 113,269.52 and 28,136.50 is: 42,224.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,478.17 : 113,269.52 = 28,136.50 : x
  2. Step 2: Convert to fraction form
    75,478.17/113,269.52 = 28,136.50/x
  3. Step 3: Cross multiply
    75,478.17x = 113,269.52 × 28,136.50
  4. Step 4: Simplify right side
    75,478.17x = 3,187,007,849.48
  5. Step 5: Solve for x
    x = 3,187,007,849.48/75,478.17
  6. Step 6: Final answer
    x = 42,224.23

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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.