Home / 75,220.68-112,816.38-28,477.20

Finding the Fourth Proportional to 75,220.68, 112,816.38 and 28,477.20

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Solution

The fourth proportional to 75,220.68, 112,816.38 and 28,477.20 is: 42,710.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,220.68 : 112,816.38 = 28,477.20 : x
  2. Step 2: Convert to fraction form
    75,220.68/112,816.38 = 28,477.20/x
  3. Step 3: Cross multiply
    75,220.68x = 112,816.38 × 28,477.20
  4. Step 4: Simplify right side
    75,220.68x = 3,212,694,616.54
  5. Step 5: Solve for x
    x = 3,212,694,616.54/75,220.68
  6. Step 6: Final answer
    x = 42,710.26

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1.5x scale

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.