Home / 67,129.31-92,631.26-38,829.71

Finding the Fourth Proportional to 67,129.31, 92,631.26 and 38,829.71

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Solution

The fourth proportional to 67,129.31, 92,631.26 and 38,829.71 is: 53,580.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,129.31 : 92,631.26 = 38,829.71 : x
  2. Step 2: Convert to fraction form
    67,129.31/92,631.26 = 38,829.71/x
  3. Step 3: Cross multiply
    67,129.31x = 92,631.26 × 38,829.71
  4. Step 4: Simplify right side
    67,129.31x = 3,596,844,305.43
  5. Step 5: Solve for x
    x = 3,596,844,305.43/67,129.31
  6. Step 6: Final answer
    x = 53,580.84

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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.