Home / 71,118.19-98,134.73-39,285.19

Finding the Fourth Proportional to 71,118.19, 98,134.73 and 39,285.19

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Solution

The fourth proportional to 71,118.19, 98,134.73 and 39,285.19 is: 54,208.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,118.19 : 98,134.73 = 39,285.19 : x
  2. Step 2: Convert to fraction form
    71,118.19/98,134.73 = 39,285.19/x
  3. Step 3: Cross multiply
    71,118.19x = 98,134.73 × 39,285.19
  4. Step 4: Simplify right side
    71,118.19x = 3,855,241,366.52
  5. Step 5: Solve for x
    x = 3,855,241,366.52/71,118.19
  6. Step 6: Final answer
    x = 54,208.94

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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.