Home / 90,913.62-136,388.92-38,323.02

Finding the Fourth Proportional to 90,913.62, 136,388.92 and 38,323.02

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Solution

The fourth proportional to 90,913.62, 136,388.92 and 38,323.02 is: 57,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,913.62 : 136,388.92 = 38,323.02 : x
  2. Step 2: Convert to fraction form
    90,913.62/136,388.92 = 38,323.02/x
  3. Step 3: Cross multiply
    90,913.62x = 136,388.92 × 38,323.02
  4. Step 4: Simplify right side
    90,913.62x = 5,226,835,308.94
  5. Step 5: Solve for x
    x = 5,226,835,308.94/90,913.62
  6. Step 6: Final answer
    x = 57,492.32

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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.