Home / 77,648.24-116,389.30-40,170.58

Finding the Fourth Proportional to 77,648.24, 116,389.30 and 40,170.58

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Solution

The fourth proportional to 77,648.24, 116,389.30 and 40,170.58 is: 60,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,648.24 : 116,389.30 = 40,170.58 : x
  2. Step 2: Convert to fraction form
    77,648.24/116,389.30 = 40,170.58/x
  3. Step 3: Cross multiply
    77,648.24x = 116,389.30 × 40,170.58
  4. Step 4: Simplify right side
    77,648.24x = 4,675,425,686.79
  5. Step 5: Solve for x
    x = 4,675,425,686.79/77,648.24
  6. Step 6: Final answer
    x = 60,212.90

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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.