Home / 90,964.24-136,460.93-38,381.47

Finding the Fourth Proportional to 90,964.24, 136,460.93 and 38,381.47

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Solution

The fourth proportional to 90,964.24, 136,460.93 and 38,381.47 is: 57,578.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,964.24 : 136,460.93 = 38,381.47 : x
  2. Step 2: Convert to fraction form
    90,964.24/136,460.93 = 38,381.47/x
  3. Step 3: Cross multiply
    90,964.24x = 136,460.93 × 38,381.47
  4. Step 4: Simplify right side
    90,964.24x = 5,237,571,090.97
  5. Step 5: Solve for x
    x = 5,237,571,090.97/90,964.24
  6. Step 6: Final answer
    x = 57,578.35

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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.