Home / 71,176.88-98,215.58-39,341.45

Finding the Fourth Proportional to 71,176.88, 98,215.58 and 39,341.45

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Solution

The fourth proportional to 71,176.88, 98,215.58 and 39,341.45 is: 54,286.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,176.88 : 98,215.58 = 39,341.45 : x
  2. Step 2: Convert to fraction form
    71,176.88/98,215.58 = 39,341.45/x
  3. Step 3: Cross multiply
    71,176.88x = 98,215.58 × 39,341.45
  4. Step 4: Simplify right side
    71,176.88x = 3,863,942,642.01
  5. Step 5: Solve for x
    x = 3,863,942,642.01/71,176.88
  6. Step 6: Final answer
    x = 54,286.49

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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.