Home / 88,395.64-121,963.96-56,118.04

Finding the Fourth Proportional to 88,395.64, 121,963.96 and 56,118.04

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Solution

The fourth proportional to 88,395.64, 121,963.96 and 56,118.04 is: 77,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,395.64 : 121,963.96 = 56,118.04 : x
  2. Step 2: Convert to fraction form
    88,395.64/121,963.96 = 56,118.04/x
  3. Step 3: Cross multiply
    88,395.64x = 121,963.96 × 56,118.04
  4. Step 4: Simplify right side
    88,395.64x = 6,844,378,385.84
  5. Step 5: Solve for x
    x = 6,844,378,385.84/88,395.64
  6. Step 6: Final answer
    x = 77,428.91

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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.