Home / 92,815.47-139,197.69-45,406.17

Finding the Fourth Proportional to 92,815.47, 139,197.69 and 45,406.17

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Solution

The fourth proportional to 92,815.47, 139,197.69 and 45,406.17 is: 68,096.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,815.47 : 139,197.69 = 45,406.17 : x
  2. Step 2: Convert to fraction form
    92,815.47/139,197.69 = 45,406.17/x
  3. Step 3: Cross multiply
    92,815.47x = 139,197.69 × 45,406.17
  4. Step 4: Simplify right side
    92,815.47x = 6,320,433,975.75
  5. Step 5: Solve for x
    x = 6,320,433,975.75/92,815.47
  6. Step 6: Final answer
    x = 68,096.77

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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.