Home / 56,205.36-77,918.54-53,209.12

Finding the Fourth Proportional to 56,205.36, 77,918.54 and 53,209.12

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Solution

The fourth proportional to 56,205.36, 77,918.54 and 53,209.12 is: 73,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,205.36 : 77,918.54 = 53,209.12 : x
  2. Step 2: Convert to fraction form
    56,205.36/77,918.54 = 53,209.12/x
  3. Step 3: Cross multiply
    56,205.36x = 77,918.54 × 53,209.12
  4. Step 4: Simplify right side
    56,205.36x = 4,145,976,945.08
  5. Step 5: Solve for x
    x = 4,145,976,945.08/56,205.36
  6. Step 6: Final answer
    x = 73,764.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.