Home / 81,090.66-111,956.58-52,424.13

Finding the Fourth Proportional to 81,090.66, 111,956.58 and 52,424.13

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Solution

The fourth proportional to 81,090.66, 111,956.58 and 52,424.13 is: 72,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,090.66 : 111,956.58 = 52,424.13 : x
  2. Step 2: Convert to fraction form
    81,090.66/111,956.58 = 52,424.13/x
  3. Step 3: Cross multiply
    81,090.66x = 111,956.58 × 52,424.13
  4. Step 4: Simplify right side
    81,090.66x = 5,869,226,304.28
  5. Step 5: Solve for x
    x = 5,869,226,304.28/81,090.66
  6. Step 6: Final answer
    x = 72,378.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.