Home / 71,265.80-98,345.40-39,436.04

Finding the Fourth Proportional to 71,265.80, 98,345.40 and 39,436.04

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Solution

The fourth proportional to 71,265.80, 98,345.40 and 39,436.04 is: 54,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,265.80 : 98,345.40 = 39,436.04 : x
  2. Step 2: Convert to fraction form
    71,265.80/98,345.40 = 39,436.04/x
  3. Step 3: Cross multiply
    71,265.80x = 98,345.40 × 39,436.04
  4. Step 4: Simplify right side
    71,265.80x = 3,878,353,128.22
  5. Step 5: Solve for x
    x = 3,878,353,128.22/71,265.80
  6. Step 6: Final answer
    x = 54,420.96

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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.