Home / 90,428.27-124,792.50-50,143.73

Finding the Fourth Proportional to 90,428.27, 124,792.50 and 50,143.73

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Solution

The fourth proportional to 90,428.27, 124,792.50 and 50,143.73 is: 69,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,428.27 : 124,792.50 = 50,143.73 : x
  2. Step 2: Convert to fraction form
    90,428.27/124,792.50 = 50,143.73/x
  3. Step 3: Cross multiply
    90,428.27x = 124,792.50 × 50,143.73
  4. Step 4: Simplify right side
    90,428.27x = 6,257,560,802.06
  5. Step 5: Solve for x
    x = 6,257,560,802.06/90,428.27
  6. Step 6: Final answer
    x = 69,199.17

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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.