Home / 79,153.92-109,222.20-45,160.38

Finding the Fourth Proportional to 79,153.92, 109,222.20 and 45,160.38

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Solution

The fourth proportional to 79,153.92, 109,222.20 and 45,160.38 is: 62,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,153.92 : 109,222.20 = 45,160.38 : x
  2. Step 2: Convert to fraction form
    79,153.92/109,222.20 = 45,160.38/x
  3. Step 3: Cross multiply
    79,153.92x = 109,222.20 × 45,160.38
  4. Step 4: Simplify right side
    79,153.92x = 4,932,516,056.44
  5. Step 5: Solve for x
    x = 4,932,516,056.44/79,153.92
  6. Step 6: Final answer
    x = 62,315.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.