Home / 84,145.25-116,122.64-45,905.42

Finding the Fourth Proportional to 84,145.25, 116,122.64 and 45,905.42

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Solution

The fourth proportional to 84,145.25, 116,122.64 and 45,905.42 is: 63,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,145.25 : 116,122.64 = 45,905.42 : x
  2. Step 2: Convert to fraction form
    84,145.25/116,122.64 = 45,905.42/x
  3. Step 3: Cross multiply
    84,145.25x = 116,122.64 × 45,905.42
  4. Step 4: Simplify right side
    84,145.25x = 5,330,658,560.71
  5. Step 5: Solve for x
    x = 5,330,658,560.71/84,145.25
  6. Step 6: Final answer
    x = 63,350.68

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1.5x scale

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.