Home / 90,666.66-136,023.06-53,258.37

Finding the Fourth Proportional to 90,666.66, 136,023.06 and 53,258.37

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Solution

The fourth proportional to 90,666.66, 136,023.06 and 53,258.37 is: 79,901.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,666.66 : 136,023.06 = 53,258.37 : x
  2. Step 2: Convert to fraction form
    90,666.66/136,023.06 = 53,258.37/x
  3. Step 3: Cross multiply
    90,666.66x = 136,023.06 × 53,258.37
  4. Step 4: Simplify right side
    90,666.66x = 7,244,366,458.01
  5. Step 5: Solve for x
    x = 7,244,366,458.01/90,666.66
  6. Step 6: Final answer
    x = 79,901.11

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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.