Home / 71,308.05-98,406.28-39,042.14

Finding the Fourth Proportional to 71,308.05, 98,406.28 and 39,042.14

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Solution

The fourth proportional to 71,308.05, 98,406.28 and 39,042.14 is: 53,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,308.05 : 98,406.28 = 39,042.14 : x
  2. Step 2: Convert to fraction form
    71,308.05/98,406.28 = 39,042.14/x
  3. Step 3: Cross multiply
    71,308.05x = 98,406.28 × 39,042.14
  4. Step 4: Simplify right side
    71,308.05x = 3,841,991,317.41
  5. Step 5: Solve for x
    x = 3,841,991,317.41/71,308.05
  6. Step 6: Final answer
    x = 53,878.79

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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.