Home / 90,758.40-136,095.94-53,336.08

Finding the Fourth Proportional to 90,758.40, 136,095.94 and 53,336.08

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Solution

The fourth proportional to 90,758.40, 136,095.94 and 53,336.08 is: 79,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,758.40 : 136,095.94 = 53,336.08 : x
  2. Step 2: Convert to fraction form
    90,758.40/136,095.94 = 53,336.08/x
  3. Step 3: Cross multiply
    90,758.40x = 136,095.94 × 53,336.08
  4. Step 4: Simplify right side
    90,758.40x = 7,258,823,943.52
  5. Step 5: Solve for x
    x = 7,258,823,943.52/90,758.40
  6. Step 6: Final answer
    x = 79,979.64

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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.