Home / 71,137.64-98,162.58-39,302.21

Finding the Fourth Proportional to 71,137.64, 98,162.58 and 39,302.21

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Solution

The fourth proportional to 71,137.64, 98,162.58 and 39,302.21 is: 54,232.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,137.64 : 98,162.58 = 39,302.21 : x
  2. Step 2: Convert to fraction form
    71,137.64/98,162.58 = 39,302.21/x
  3. Step 3: Cross multiply
    71,137.64x = 98,162.58 × 39,302.21
  4. Step 4: Simplify right side
    71,137.64x = 3,858,006,726.09
  5. Step 5: Solve for x
    x = 3,858,006,726.09/71,137.64
  6. Step 6: Final answer
    x = 54,232.99

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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.