Home / 90,235.36-124,523.76-49,949.20

Finding the Fourth Proportional to 90,235.36, 124,523.76 and 49,949.20

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Solution

The fourth proportional to 90,235.36, 124,523.76 and 49,949.20 is: 68,929.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,235.36 : 124,523.76 = 49,949.20 : x
  2. Step 2: Convert to fraction form
    90,235.36/124,523.76 = 49,949.20/x
  3. Step 3: Cross multiply
    90,235.36x = 124,523.76 × 49,949.20
  4. Step 4: Simplify right side
    90,235.36x = 6,219,862,192.99
  5. Step 5: Solve for x
    x = 6,219,862,192.99/90,235.36
  6. Step 6: Final answer
    x = 68,929.32

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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.