Home / 76,932.38-106,166.30-42,938.91

Finding the Fourth Proportional to 76,932.38, 106,166.30 and 42,938.91

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Solution

The fourth proportional to 76,932.38, 106,166.30 and 42,938.91 is: 59,255.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,932.38 : 106,166.30 = 42,938.91 : x
  2. Step 2: Convert to fraction form
    76,932.38/106,166.30 = 42,938.91/x
  3. Step 3: Cross multiply
    76,932.38x = 106,166.30 × 42,938.91
  4. Step 4: Simplify right side
    76,932.38x = 4,558,664,986.04
  5. Step 5: Solve for x
    x = 4,558,664,986.04/76,932.38
  6. Step 6: Final answer
    x = 59,255.48

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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.