Home / 69,864.62-96,400.47-39,651.21

Finding the Fourth Proportional to 69,864.62, 96,400.47 and 39,651.21

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Solution

The fourth proportional to 69,864.62, 96,400.47 and 39,651.21 is: 54,711.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,864.62 : 96,400.47 = 39,651.21 : x
  2. Step 2: Convert to fraction form
    69,864.62/96,400.47 = 39,651.21/x
  3. Step 3: Cross multiply
    69,864.62x = 96,400.47 × 39,651.21
  4. Step 4: Simplify right side
    69,864.62x = 3,822,395,280.07
  5. Step 5: Solve for x
    x = 3,822,395,280.07/69,864.62
  6. Step 6: Final answer
    x = 54,711.46

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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.