Home / 90,966.36-136,464.13-38,383.59

Finding the Fourth Proportional to 90,966.36, 136,464.13 and 38,383.59

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Solution

The fourth proportional to 90,966.36, 136,464.13 and 38,383.59 is: 57,581.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,966.36 : 136,464.13 = 38,383.59 : x
  2. Step 2: Convert to fraction form
    90,966.36/136,464.13 = 38,383.59/x
  3. Step 3: Cross multiply
    90,966.36x = 136,464.13 × 38,383.59
  4. Step 4: Simplify right side
    90,966.36x = 5,237,983,215.63
  5. Step 5: Solve for x
    x = 5,237,983,215.63/90,966.36
  6. Step 6: Final answer
    x = 57,581.54

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1.5x scale

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.