Home / 83,570.66-115,329.07-51,289.10

Finding the Fourth Proportional to 83,570.66, 115,329.07 and 51,289.10

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Solution

The fourth proportional to 83,570.66, 115,329.07 and 51,289.10 is: 70,779.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,570.66 : 115,329.07 = 51,289.10 : x
  2. Step 2: Convert to fraction form
    83,570.66/115,329.07 = 51,289.10/x
  3. Step 3: Cross multiply
    83,570.66x = 115,329.07 × 51,289.10
  4. Step 4: Simplify right side
    83,570.66x = 5,915,123,371.05
  5. Step 5: Solve for x
    x = 5,915,123,371.05/83,570.66
  6. Step 6: Final answer
    x = 70,779.91

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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.