Home / 93,685.76-129,329.92-55,433.28

Finding the Fourth Proportional to 93,685.76, 129,329.92 and 55,433.28

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Solution

The fourth proportional to 93,685.76, 129,329.92 and 55,433.28 is: 76,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,685.76 : 129,329.92 = 55,433.28 : x
  2. Step 2: Convert to fraction form
    93,685.76/129,329.92 = 55,433.28/x
  3. Step 3: Cross multiply
    93,685.76x = 129,329.92 × 55,433.28
  4. Step 4: Simplify right side
    93,685.76x = 7,169,181,667.74
  5. Step 5: Solve for x
    x = 7,169,181,667.74/93,685.76
  6. Step 6: Final answer
    x = 76,523.71

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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.