Home / 90,428.13-124,792.32-50,143.59

Finding the Fourth Proportional to 90,428.13, 124,792.32 and 50,143.59

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Solution

The fourth proportional to 90,428.13, 124,792.32 and 50,143.59 is: 69,198.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,428.13 : 124,792.32 = 50,143.59 : x
  2. Step 2: Convert to fraction form
    90,428.13/124,792.32 = 50,143.59/x
  3. Step 3: Cross multiply
    90,428.13x = 124,792.32 × 50,143.59
  4. Step 4: Simplify right side
    90,428.13x = 6,257,534,929.23
  5. Step 5: Solve for x
    x = 6,257,534,929.23/90,428.13
  6. Step 6: Final answer
    x = 69,198.99

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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.