Home / 75,145.95-112,768.14-28,398.83

Finding the Fourth Proportional to 75,145.95, 112,768.14 and 28,398.83

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Solution

The fourth proportional to 75,145.95, 112,768.14 and 28,398.83 is: 42,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,145.95 : 112,768.14 = 28,398.83 : x
  2. Step 2: Convert to fraction form
    75,145.95/112,768.14 = 28,398.83/x
  3. Step 3: Cross multiply
    75,145.95x = 112,768.14 × 28,398.83
  4. Step 4: Simplify right side
    75,145.95x = 3,202,483,237.28
  5. Step 5: Solve for x
    x = 3,202,483,237.28/75,145.95
  6. Step 6: Final answer
    x = 42,616.84

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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.