Home / 71,179.07-98,227.08-42,890.22

Finding the Fourth Proportional to 71,179.07, 98,227.08 and 42,890.22

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Solution

The fourth proportional to 71,179.07, 98,227.08 and 42,890.22 is: 59,188.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,179.07 : 98,227.08 = 42,890.22 : x
  2. Step 2: Convert to fraction form
    71,179.07/98,227.08 = 42,890.22/x
  3. Step 3: Cross multiply
    71,179.07x = 98,227.08 × 42,890.22
  4. Step 4: Simplify right side
    71,179.07x = 4,212,981,071.16
  5. Step 5: Solve for x
    x = 4,212,981,071.16/71,179.07
  6. Step 6: Final answer
    x = 59,188.49

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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.