Home / 69,809.38-96,320.55-39,587.74

Finding the Fourth Proportional to 69,809.38, 96,320.55 and 39,587.74

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Solution

The fourth proportional to 69,809.38, 96,320.55 and 39,587.74 is: 54,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,809.38 : 96,320.55 = 39,587.74 : x
  2. Step 2: Convert to fraction form
    69,809.38/96,320.55 = 39,587.74/x
  3. Step 3: Cross multiply
    69,809.38x = 96,320.55 × 39,587.74
  4. Step 4: Simplify right side
    69,809.38x = 3,813,112,890.06
  5. Step 5: Solve for x
    x = 3,813,112,890.06/69,809.38
  6. Step 6: Final answer
    x = 54,621.78

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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.