Home / 90,913.30-136,323.25-48,828.79

Finding the Fourth Proportional to 90,913.30, 136,323.25 and 48,828.79

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Solution

The fourth proportional to 90,913.30, 136,323.25 and 48,828.79 is: 73,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,913.30 : 136,323.25 = 48,828.79 : x
  2. Step 2: Convert to fraction form
    90,913.30/136,323.25 = 48,828.79/x
  3. Step 3: Cross multiply
    90,913.30x = 136,323.25 × 48,828.79
  4. Step 4: Simplify right side
    90,913.30x = 6,656,499,102.22
  5. Step 5: Solve for x
    x = 6,656,499,102.22/90,913.30
  6. Step 6: Final answer
    x = 73,218.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.