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Finding the Fourth Proportional to 84,533.60, 126,800.40 and 21,353.60

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Solution

The fourth proportional to 84,533.60, 126,800.40 and 21,353.60 is: 32,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,533.60 : 126,800.40 = 21,353.60 : x
  2. Step 2: Convert to fraction form
    84,533.60/126,800.40 = 21,353.60/x
  3. Step 3: Cross multiply
    84,533.60x = 126,800.40 × 21,353.60
  4. Step 4: Simplify right side
    84,533.60x = 2,707,645,021.44
  5. Step 5: Solve for x
    x = 2,707,645,021.44/84,533.60
  6. Step 6: Final answer
    x = 32,030.40

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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.