Home / 71,529.18-98,705.67-39,698.10

Finding the Fourth Proportional to 71,529.18, 98,705.67 and 39,698.10

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Solution

The fourth proportional to 71,529.18, 98,705.67 and 39,698.10 is: 54,780.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,529.18 : 98,705.67 = 39,698.10 : x
  2. Step 2: Convert to fraction form
    71,529.18/98,705.67 = 39,698.10/x
  3. Step 3: Cross multiply
    71,529.18x = 98,705.67 × 39,698.10
  4. Step 4: Simplify right side
    71,529.18x = 3,918,427,558.23
  5. Step 5: Solve for x
    x = 3,918,427,558.23/71,529.18
  6. Step 6: Final answer
    x = 54,780.83

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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.