Home / 78,221.64-117,332.52-22,061.28

Finding the Fourth Proportional to 78,221.64, 117,332.52 and 22,061.28

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Solution

The fourth proportional to 78,221.64, 117,332.52 and 22,061.28 is: 33,091.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,221.64 : 117,332.52 = 22,061.28 : x
  2. Step 2: Convert to fraction form
    78,221.64/117,332.52 = 22,061.28/x
  3. Step 3: Cross multiply
    78,221.64x = 117,332.52 × 22,061.28
  4. Step 4: Simplify right side
    78,221.64x = 2,588,505,576.83
  5. Step 5: Solve for x
    x = 2,588,505,576.83/78,221.64
  6. Step 6: Final answer
    x = 33,091.94

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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.