Home / 81,064.48-121,544.08-33,666.56

Finding the Fourth Proportional to 81,064.48, 121,544.08 and 33,666.56

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Solution

The fourth proportional to 81,064.48, 121,544.08 and 33,666.56 is: 50,477.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,064.48 : 121,544.08 = 33,666.56 : x
  2. Step 2: Convert to fraction form
    81,064.48/121,544.08 = 33,666.56/x
  3. Step 3: Cross multiply
    81,064.48x = 121,544.08 × 33,666.56
  4. Step 4: Simplify right side
    81,064.48x = 4,091,971,061.96
  5. Step 5: Solve for x
    x = 4,091,971,061.96/81,064.48
  6. Step 6: Final answer
    x = 50,477.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.