Home / 83,636.96-115,390.85-53,439.93

Finding the Fourth Proportional to 83,636.96, 115,390.85 and 53,439.93

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Solution

The fourth proportional to 83,636.96, 115,390.85 and 53,439.93 is: 73,729.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,636.96 : 115,390.85 = 53,439.93 : x
  2. Step 2: Convert to fraction form
    83,636.96/115,390.85 = 53,439.93/x
  3. Step 3: Cross multiply
    83,636.96x = 115,390.85 × 53,439.93
  4. Step 4: Simplify right side
    83,636.96x = 6,166,478,679.44
  5. Step 5: Solve for x
    x = 6,166,478,679.44/83,636.96
  6. Step 6: Final answer
    x = 73,729.12

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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.