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Finding the Fourth Proportional to 110,421.60, 165,551.40 and 43,828.80

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Solution

The fourth proportional to 110,421.60, 165,551.40 and 43,828.80 is: 65,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,421.60 : 165,551.40 = 43,828.80 : x
  2. Step 2: Convert to fraction form
    110,421.60/165,551.40 = 43,828.80/x
  3. Step 3: Cross multiply
    110,421.60x = 165,551.40 × 43,828.80
  4. Step 4: Simplify right side
    110,421.60x = 7,255,919,200.32
  5. Step 5: Solve for x
    x = 7,255,919,200.32/110,421.60
  6. Step 6: Final answer
    x = 65,711.05

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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.