Home / 42,747.85-64,134.75-30,291.98

Finding the Fourth Proportional to 42,747.85, 64,134.75 and 30,291.98

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Solution

The fourth proportional to 42,747.85, 64,134.75 and 30,291.98 is: 45,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,747.85 : 64,134.75 = 30,291.98 : x
  2. Step 2: Convert to fraction form
    42,747.85/64,134.75 = 30,291.98/x
  3. Step 3: Cross multiply
    42,747.85x = 64,134.75 × 30,291.98
  4. Step 4: Simplify right side
    42,747.85x = 1,942,768,357.23
  5. Step 5: Solve for x
    x = 1,942,768,357.23/42,747.85
  6. Step 6: Final answer
    x = 45,447.16

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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.