Home / 90,822.81-136,145.85-43,425.66

Finding the Fourth Proportional to 90,822.81, 136,145.85 and 43,425.66

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Solution

The fourth proportional to 90,822.81, 136,145.85 and 43,425.66 is: 65,096.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,822.81 : 136,145.85 = 43,425.66 : x
  2. Step 2: Convert to fraction form
    90,822.81/136,145.85 = 43,425.66/x
  3. Step 3: Cross multiply
    90,822.81x = 136,145.85 × 43,425.66
  4. Step 4: Simplify right side
    90,822.81x = 5,912,223,392.51
  5. Step 5: Solve for x
    x = 5,912,223,392.51/90,822.81
  6. Step 6: Final answer
    x = 65,096.24

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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.