Home / 88,061.76-121,495.64-50,309.28

Finding the Fourth Proportional to 88,061.76, 121,495.64 and 50,309.28

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Solution

The fourth proportional to 88,061.76, 121,495.64 and 50,309.28 is: 69,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,061.76 : 121,495.64 = 50,309.28 : x
  2. Step 2: Convert to fraction form
    88,061.76/121,495.64 = 50,309.28/x
  3. Step 3: Cross multiply
    88,061.76x = 121,495.64 × 50,309.28
  4. Step 4: Simplify right side
    88,061.76x = 6,112,358,171.54
  5. Step 5: Solve for x
    x = 6,112,358,171.54/88,061.76
  6. Step 6: Final answer
    x = 69,409.90

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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.