Home / 75,884.42-113,838.95-28,503.20

Finding the Fourth Proportional to 75,884.42, 113,838.95 and 28,503.20

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Solution

The fourth proportional to 75,884.42, 113,838.95 and 28,503.20 is: 42,759.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,884.42 : 113,838.95 = 28,503.20 : x
  2. Step 2: Convert to fraction form
    75,884.42/113,838.95 = 28,503.20/x
  3. Step 3: Cross multiply
    75,884.42x = 113,838.95 × 28,503.20
  4. Step 4: Simplify right side
    75,884.42x = 3,244,774,715.50
  5. Step 5: Solve for x
    x = 3,244,774,715.50/75,884.42
  6. Step 6: Final answer
    x = 42,759.43

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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.