Home / 68,101.60-102,151.92-40,315.36

Finding the Fourth Proportional to 68,101.60, 102,151.92 and 40,315.36

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Solution

The fourth proportional to 68,101.60, 102,151.92 and 40,315.36 is: 60,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,101.60 : 102,151.92 = 40,315.36 : x
  2. Step 2: Convert to fraction form
    68,101.60/102,151.92 = 40,315.36/x
  3. Step 3: Cross multiply
    68,101.60x = 102,151.92 × 40,315.36
  4. Step 4: Simplify right side
    68,101.60x = 4,118,291,429.49
  5. Step 5: Solve for x
    x = 4,118,291,429.49/68,101.60
  6. Step 6: Final answer
    x = 60,472.76

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1.5x scale

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.