Home / 69,290.28-103,888.72-55,979.65

Finding the Fourth Proportional to 69,290.28, 103,888.72 and 55,979.65

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Solution

The fourth proportional to 69,290.28, 103,888.72 and 55,979.65 is: 83,931.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,290.28 : 103,888.72 = 55,979.65 : x
  2. Step 2: Convert to fraction form
    69,290.28/103,888.72 = 55,979.65/x
  3. Step 3: Cross multiply
    69,290.28x = 103,888.72 × 55,979.65
  4. Step 4: Simplify right side
    69,290.28x = 5,815,653,904.65
  5. Step 5: Solve for x
    x = 5,815,653,904.65/69,290.28
  6. Step 6: Final answer
    x = 83,931.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.