Home / 76,923.20-106,154.80-42,934.88

Finding the Fourth Proportional to 76,923.20, 106,154.80 and 42,934.88

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Solution

The fourth proportional to 76,923.20, 106,154.80 and 42,934.88 is: 59,250.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,923.20 : 106,154.80 = 42,934.88 : x
  2. Step 2: Convert to fraction form
    76,923.20/106,154.80 = 42,934.88/x
  3. Step 3: Cross multiply
    76,923.20x = 106,154.80 × 42,934.88
  4. Step 4: Simplify right side
    76,923.20x = 4,557,743,599.42
  5. Step 5: Solve for x
    x = 4,557,743,599.42/76,923.20
  6. Step 6: Final answer
    x = 59,250.57

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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.