Home / 65,203.76-89,981.24-36,918.56

Finding the Fourth Proportional to 65,203.76, 89,981.24 and 36,918.56

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Solution

The fourth proportional to 65,203.76, 89,981.24 and 36,918.56 is: 50,947.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,203.76 : 89,981.24 = 36,918.56 : x
  2. Step 2: Convert to fraction form
    65,203.76/89,981.24 = 36,918.56/x
  3. Step 3: Cross multiply
    65,203.76x = 89,981.24 × 36,918.56
  4. Step 4: Simplify right side
    65,203.76x = 3,321,977,807.81
  5. Step 5: Solve for x
    x = 3,321,977,807.81/65,203.76
  6. Step 6: Final answer
    x = 50,947.64

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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.