Home / 96,909.84-145,421.16-40,745.88

Finding the Fourth Proportional to 96,909.84, 145,421.16 and 40,745.88

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Solution

The fourth proportional to 96,909.84, 145,421.16 and 40,745.88 is: 61,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,909.84 : 145,421.16 = 40,745.88 : x
  2. Step 2: Convert to fraction form
    96,909.84/145,421.16 = 40,745.88/x
  3. Step 3: Cross multiply
    96,909.84x = 145,421.16 × 40,745.88
  4. Step 4: Simplify right side
    96,909.84x = 5,925,313,134.82
  5. Step 5: Solve for x
    x = 5,925,313,134.82/96,909.84
  6. Step 6: Final answer
    x = 61,142.53

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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.