Home / 76,921.85-106,157.48-42,936.95

Finding the Fourth Proportional to 76,921.85, 106,157.48 and 42,936.95

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Solution

The fourth proportional to 76,921.85, 106,157.48 and 42,936.95 is: 59,255.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,921.85 : 106,157.48 = 42,936.95 : x
  2. Step 2: Convert to fraction form
    76,921.85/106,157.48 = 42,936.95/x
  3. Step 3: Cross multiply
    76,921.85x = 106,157.48 × 42,936.95
  4. Step 4: Simplify right side
    76,921.85x = 4,558,077,665.41
  5. Step 5: Solve for x
    x = 4,558,077,665.41/76,921.85
  6. Step 6: Final answer
    x = 59,255.96

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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.