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Finding the Fourth Proportional to 77,420.50, 116,150.25 and 22,016.50

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Solution

The fourth proportional to 77,420.50, 116,150.25 and 22,016.50 is: 33,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,420.50 : 116,150.25 = 22,016.50 : x
  2. Step 2: Convert to fraction form
    77,420.50/116,150.25 = 22,016.50/x
  3. Step 3: Cross multiply
    77,420.50x = 116,150.25 × 22,016.50
  4. Step 4: Simplify right side
    77,420.50x = 2,557,221,979.13
  5. Step 5: Solve for x
    x = 2,557,221,979.13/77,420.50
  6. Step 6: Final answer
    x = 33,030.30

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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.