Home / 77,619.88-116,432.55-30,238.52

Finding the Fourth Proportional to 77,619.88, 116,432.55 and 30,238.52

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Solution

The fourth proportional to 77,619.88, 116,432.55 and 30,238.52 is: 45,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,619.88 : 116,432.55 = 30,238.52 : x
  2. Step 2: Convert to fraction form
    77,619.88/116,432.55 = 30,238.52/x
  3. Step 3: Cross multiply
    77,619.88x = 116,432.55 × 30,238.52
  4. Step 4: Simplify right side
    77,619.88x = 3,520,748,282.91
  5. Step 5: Solve for x
    x = 3,520,748,282.91/77,619.88
  6. Step 6: Final answer
    x = 45,358.85

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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.