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Finding the Fourth Proportional to 84,451.60, 126,677.40 and 22,128.40

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Solution

The fourth proportional to 84,451.60, 126,677.40 and 22,128.40 is: 33,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,451.60 : 126,677.40 = 22,128.40 : x
  2. Step 2: Convert to fraction form
    84,451.60/126,677.40 = 22,128.40/x
  3. Step 3: Cross multiply
    84,451.60x = 126,677.40 × 22,128.40
  4. Step 4: Simplify right side
    84,451.60x = 2,803,168,178.16
  5. Step 5: Solve for x
    x = 2,803,168,178.16/84,451.60
  6. Step 6: Final answer
    x = 33,192.60

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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.