Home / 83,816.25-115,666.66-45,575.81

Finding the Fourth Proportional to 83,816.25, 115,666.66 and 45,575.81

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Solution

The fourth proportional to 83,816.25, 115,666.66 and 45,575.81 is: 62,894.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,816.25 : 115,666.66 = 45,575.81 : x
  2. Step 2: Convert to fraction form
    83,816.25/115,666.66 = 45,575.81/x
  3. Step 3: Cross multiply
    83,816.25x = 115,666.66 × 45,575.81
  4. Step 4: Simplify right side
    83,816.25x = 5,271,601,719.49
  5. Step 5: Solve for x
    x = 5,271,601,719.49/83,816.25
  6. Step 6: Final answer
    x = 62,894.75

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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.