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Finding the Fourth Proportional to 55,316.71, 82,975.08 and 13,763.71

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Solution

The fourth proportional to 55,316.71, 82,975.08 and 13,763.71 is: 20,645.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,316.71 : 82,975.08 = 13,763.71 : x
  2. Step 2: Convert to fraction form
    55,316.71/82,975.08 = 13,763.71/x
  3. Step 3: Cross multiply
    55,316.71x = 82,975.08 × 13,763.71
  4. Step 4: Simplify right side
    55,316.71x = 1,142,044,454.65
  5. Step 5: Solve for x
    x = 1,142,044,454.65/55,316.71
  6. Step 6: Final answer
    x = 20,645.56

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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.