Home / 69,895.83-96,465.12-39,691.05

Finding the Fourth Proportional to 69,895.83, 96,465.12 and 39,691.05

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Solution

The fourth proportional to 69,895.83, 96,465.12 and 39,691.05 is: 54,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,895.83 : 96,465.12 = 39,691.05 : x
  2. Step 2: Convert to fraction form
    69,895.83/96,465.12 = 39,691.05/x
  3. Step 3: Cross multiply
    69,895.83x = 96,465.12 × 39,691.05
  4. Step 4: Simplify right side
    69,895.83x = 3,828,801,901.18
  5. Step 5: Solve for x
    x = 3,828,801,901.18/69,895.83
  6. Step 6: Final answer
    x = 54,778.69

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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.