Home / 78,441.84-108,250.58-42,631.85

Finding the Fourth Proportional to 78,441.84, 108,250.58 and 42,631.85

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Solution

The fourth proportional to 78,441.84, 108,250.58 and 42,631.85 is: 58,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,441.84 : 108,250.58 = 42,631.85 : x
  2. Step 2: Convert to fraction form
    78,441.84/108,250.58 = 42,631.85/x
  3. Step 3: Cross multiply
    78,441.84x = 108,250.58 × 42,631.85
  4. Step 4: Simplify right side
    78,441.84x = 4,614,922,488.97
  5. Step 5: Solve for x
    x = 4,614,922,488.97/78,441.84
  6. Step 6: Final answer
    x = 58,832.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.