Home / 91,642.28-137,340.30-39,037.64

Finding the Fourth Proportional to 91,642.28, 137,340.30 and 39,037.64

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Solution

The fourth proportional to 91,642.28, 137,340.30 and 39,037.64 is: 58,504.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,642.28 : 137,340.30 = 39,037.64 : x
  2. Step 2: Convert to fraction form
    91,642.28/137,340.30 = 39,037.64/x
  3. Step 3: Cross multiply
    91,642.28x = 137,340.30 × 39,037.64
  4. Step 4: Simplify right side
    91,642.28x = 5,361,441,188.89
  5. Step 5: Solve for x
    x = 5,361,441,188.89/91,642.28
  6. Step 6: Final answer
    x = 58,504.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.