Home / 42,899.76-64,221.96-38,394.48

Finding the Fourth Proportional to 42,899.76, 64,221.96 and 38,394.48

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Solution

The fourth proportional to 42,899.76, 64,221.96 and 38,394.48 is: 57,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,899.76 : 64,221.96 = 38,394.48 : x
  2. Step 2: Convert to fraction form
    42,899.76/64,221.96 = 38,394.48/x
  3. Step 3: Cross multiply
    42,899.76x = 64,221.96 × 38,394.48
  4. Step 4: Simplify right side
    42,899.76x = 2,465,768,758.78
  5. Step 5: Solve for x
    x = 2,465,768,758.78/42,899.76
  6. Step 6: Final answer
    x = 57,477.45

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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.