Home / 90,115.64-124,358.29-49,828.52

Finding the Fourth Proportional to 90,115.64, 124,358.29 and 49,828.52

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Solution

The fourth proportional to 90,115.64, 124,358.29 and 49,828.52 is: 68,762.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,115.64 : 124,358.29 = 49,828.52 : x
  2. Step 2: Convert to fraction form
    90,115.64/124,358.29 = 49,828.52/x
  3. Step 3: Cross multiply
    90,115.64x = 124,358.29 × 49,828.52
  4. Step 4: Simplify right side
    90,115.64x = 6,196,589,027.24
  5. Step 5: Solve for x
    x = 6,196,589,027.24/90,115.64
  6. Step 6: Final answer
    x = 68,762.64

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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.