Home / 71,001.09-97,980.84-39,169.31

Finding the Fourth Proportional to 71,001.09, 97,980.84 and 39,169.31

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Solution

The fourth proportional to 71,001.09, 97,980.84 and 39,169.31 is: 54,053.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,001.09 : 97,980.84 = 39,169.31 : x
  2. Step 2: Convert to fraction form
    71,001.09/97,980.84 = 39,169.31/x
  3. Step 3: Cross multiply
    71,001.09x = 97,980.84 × 39,169.31
  4. Step 4: Simplify right side
    71,001.09x = 3,837,841,406.12
  5. Step 5: Solve for x
    x = 3,837,841,406.12/71,001.09
  6. Step 6: Final answer
    x = 54,053.27

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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.