Home / 81,533.81-112,521.56-45,725.87

Finding the Fourth Proportional to 81,533.81, 112,521.56 and 45,725.87

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Solution

The fourth proportional to 81,533.81, 112,521.56 and 45,725.87 is: 63,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,533.81 : 112,521.56 = 45,725.87 : x
  2. Step 2: Convert to fraction form
    81,533.81/112,521.56 = 45,725.87/x
  3. Step 3: Cross multiply
    81,533.81x = 112,521.56 × 45,725.87
  4. Step 4: Simplify right side
    81,533.81x = 5,145,145,433.52
  5. Step 5: Solve for x
    x = 5,145,145,433.52/81,533.81
  6. Step 6: Final answer
    x = 63,104.44

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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.