Home / 75,661.34-104,220.41-57,725.19

Finding the Fourth Proportional to 75,661.34, 104,220.41 and 57,725.19

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Solution

The fourth proportional to 75,661.34, 104,220.41 and 57,725.19 is: 79,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,661.34 : 104,220.41 = 57,725.19 : x
  2. Step 2: Convert to fraction form
    75,661.34/104,220.41 = 57,725.19/x
  3. Step 3: Cross multiply
    75,661.34x = 104,220.41 × 57,725.19
  4. Step 4: Simplify right side
    75,661.34x = 6,016,142,680.50
  5. Step 5: Solve for x
    x = 6,016,142,680.50/75,661.34
  6. Step 6: Final answer
    x = 79,514.10

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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.