Home / 90,022.50-124,229.58-49,737.96

Finding the Fourth Proportional to 90,022.50, 124,229.58 and 49,737.96

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Solution

The fourth proportional to 90,022.50, 124,229.58 and 49,737.96 is: 68,637.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,022.50 : 124,229.58 = 49,737.96 : x
  2. Step 2: Convert to fraction form
    90,022.50/124,229.58 = 49,737.96/x
  3. Step 3: Cross multiply
    90,022.50x = 124,229.58 × 49,737.96
  4. Step 4: Simplify right side
    90,022.50x = 6,178,925,880.86
  5. Step 5: Solve for x
    x = 6,178,925,880.86/90,022.50
  6. Step 6: Final answer
    x = 68,637.57

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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.