Home / 109,639.64-164,327.02-53,395.48

Finding the Fourth Proportional to 109,639.64, 164,327.02 and 53,395.48

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Solution

The fourth proportional to 109,639.64, 164,327.02 and 53,395.48 is: 80,028.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,639.64 : 164,327.02 = 53,395.48 : x
  2. Step 2: Convert to fraction form
    109,639.64/164,327.02 = 53,395.48/x
  3. Step 3: Cross multiply
    109,639.64x = 164,327.02 × 53,395.48
  4. Step 4: Simplify right side
    109,639.64x = 8,774,320,109.87
  5. Step 5: Solve for x
    x = 8,774,320,109.87/109,639.64
  6. Step 6: Final answer
    x = 80,028.72

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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.