Home / 51,803.20-77,666.40-22,196.80

Finding the Fourth Proportional to 51,803.20, 77,666.40 and 22,196.80

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Solution

The fourth proportional to 51,803.20, 77,666.40 and 22,196.80 is: 33,278.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,803.20 : 77,666.40 = 22,196.80 : x
  2. Step 2: Convert to fraction form
    51,803.20/77,666.40 = 22,196.80/x
  3. Step 3: Cross multiply
    51,803.20x = 77,666.40 × 22,196.80
  4. Step 4: Simplify right side
    51,803.20x = 1,723,945,547.52
  5. Step 5: Solve for x
    x = 1,723,945,547.52/51,803.20
  6. Step 6: Final answer
    x = 33,278.75

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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.