Home / 76,925.20-106,157.56-42,936.88

Finding the Fourth Proportional to 76,925.20, 106,157.56 and 42,936.88

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Solution

The fourth proportional to 76,925.20, 106,157.56 and 42,936.88 is: 59,253.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,925.20 : 106,157.56 = 42,936.88 : x
  2. Step 2: Convert to fraction form
    76,925.20/106,157.56 = 42,936.88/x
  3. Step 3: Cross multiply
    76,925.20x = 106,157.56 × 42,936.88
  4. Step 4: Simplify right side
    76,925.20x = 4,558,074,414.81
  5. Step 5: Solve for x
    x = 4,558,074,414.81/76,925.20
  6. Step 6: Final answer
    x = 59,253.33

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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.