Home / 42,770.11-64,166.09-17,801.86

Finding the Fourth Proportional to 42,770.11, 64,166.09 and 17,801.86

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Solution

The fourth proportional to 42,770.11, 64,166.09 and 17,801.86 is: 26,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,770.11 : 64,166.09 = 17,801.86 : x
  2. Step 2: Convert to fraction form
    42,770.11/64,166.09 = 17,801.86/x
  3. Step 3: Cross multiply
    42,770.11x = 64,166.09 × 17,801.86
  4. Step 4: Simplify right side
    42,770.11x = 1,142,275,635.02
  5. Step 5: Solve for x
    x = 1,142,275,635.02/42,770.11
  6. Step 6: Final answer
    x = 26,707.34

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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.