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Finding the Fourth Proportional to 70,810.76, 106,233.42 and 21,562.76

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Solution

The fourth proportional to 70,810.76, 106,233.42 and 21,562.76 is: 32,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,810.76 : 106,233.42 = 21,562.76 : x
  2. Step 2: Convert to fraction form
    70,810.76/106,233.42 = 21,562.76/x
  3. Step 3: Cross multiply
    70,810.76x = 106,233.42 × 21,562.76
  4. Step 4: Simplify right side
    70,810.76x = 2,290,685,739.44
  5. Step 5: Solve for x
    x = 2,290,685,739.44/70,810.76
  6. Step 6: Final answer
    x = 32,349.40

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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.