Home / 71,720.24-98,977.44-39,888.46

Finding the Fourth Proportional to 71,720.24, 98,977.44 and 39,888.46

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Solution

The fourth proportional to 71,720.24, 98,977.44 and 39,888.46 is: 55,048.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,720.24 : 98,977.44 = 39,888.46 : x
  2. Step 2: Convert to fraction form
    71,720.24/98,977.44 = 39,888.46/x
  3. Step 3: Cross multiply
    71,720.24x = 98,977.44 × 39,888.46
  4. Step 4: Simplify right side
    71,720.24x = 3,948,057,656.34
  5. Step 5: Solve for x
    x = 3,948,057,656.34/71,720.24
  6. Step 6: Final answer
    x = 55,048.03

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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.