Home / 66,627.78-99,908.55-22,239.30

Finding the Fourth Proportional to 66,627.78, 99,908.55 and 22,239.30

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Solution

The fourth proportional to 66,627.78, 99,908.55 and 22,239.30 is: 33,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,627.78 : 99,908.55 = 22,239.30 : x
  2. Step 2: Convert to fraction form
    66,627.78/99,908.55 = 22,239.30/x
  3. Step 3: Cross multiply
    66,627.78x = 99,908.55 × 22,239.30
  4. Step 4: Simplify right side
    66,627.78x = 2,221,896,216.02
  5. Step 5: Solve for x
    x = 2,221,896,216.02/66,627.78
  6. Step 6: Final answer
    x = 33,347.90

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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.