Home / 71,070.39-98,077.32-39,239.01

Finding the Fourth Proportional to 71,070.39, 98,077.32 and 39,239.01

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Solution

The fourth proportional to 71,070.39, 98,077.32 and 39,239.01 is: 54,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,070.39 : 98,077.32 = 39,239.01 : x
  2. Step 2: Convert to fraction form
    71,070.39/98,077.32 = 39,239.01/x
  3. Step 3: Cross multiply
    71,070.39x = 98,077.32 × 39,239.01
  4. Step 4: Simplify right side
    71,070.39x = 3,848,456,940.25
  5. Step 5: Solve for x
    x = 3,848,456,940.25/71,070.39
  6. Step 6: Final answer
    x = 54,149.93

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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.