Home / 71,261.24-98,336.43-39,428.24

Finding the Fourth Proportional to 71,261.24, 98,336.43 and 39,428.24

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Solution

The fourth proportional to 71,261.24, 98,336.43 and 39,428.24 is: 54,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,261.24 : 98,336.43 = 39,428.24 : x
  2. Step 2: Convert to fraction form
    71,261.24/98,336.43 = 39,428.24/x
  3. Step 3: Cross multiply
    71,261.24x = 98,336.43 × 39,428.24
  4. Step 4: Simplify right side
    71,261.24x = 3,877,231,871.10
  5. Step 5: Solve for x
    x = 3,877,231,871.10/71,261.24
  6. Step 6: Final answer
    x = 54,408.71

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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.