Home / 90,807.28-136,324.32-61,355.68

Finding the Fourth Proportional to 90,807.28, 136,324.32 and 61,355.68

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Solution

The fourth proportional to 90,807.28, 136,324.32 and 61,355.68 is: 92,110.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,807.28 : 136,324.32 = 61,355.68 : x
  2. Step 2: Convert to fraction form
    90,807.28/136,324.32 = 61,355.68/x
  3. Step 3: Cross multiply
    90,807.28x = 136,324.32 × 61,355.68
  4. Step 4: Simplify right side
    90,807.28x = 8,364,271,354.14
  5. Step 5: Solve for x
    x = 8,364,271,354.14/90,807.28
  6. Step 6: Final answer
    x = 92,110.14

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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.