Home / 69,587.27-104,386.53-19,667.78

Finding the Fourth Proportional to 69,587.27, 104,386.53 and 19,667.78

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Solution

The fourth proportional to 69,587.27, 104,386.53 and 19,667.78 is: 29,503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,587.27 : 104,386.53 = 19,667.78 : x
  2. Step 2: Convert to fraction form
    69,587.27/104,386.53 = 19,667.78/x
  3. Step 3: Cross multiply
    69,587.27x = 104,386.53 × 19,667.78
  4. Step 4: Simplify right side
    69,587.27x = 2,053,050,785.07
  5. Step 5: Solve for x
    x = 2,053,050,785.07/69,587.27
  6. Step 6: Final answer
    x = 29,503.25

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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.