Home / 88,320.28-121,991.40-64,082.37

Finding the Fourth Proportional to 88,320.28, 121,991.40 and 64,082.37

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Solution

The fourth proportional to 88,320.28, 121,991.40 and 64,082.37 is: 88,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,320.28 : 121,991.40 = 64,082.37 : x
  2. Step 2: Convert to fraction form
    88,320.28/121,991.40 = 64,082.37/x
  3. Step 3: Cross multiply
    88,320.28x = 121,991.40 × 64,082.37
  4. Step 4: Simplify right side
    88,320.28x = 7,817,497,377.13
  5. Step 5: Solve for x
    x = 7,817,497,377.13/88,320.28
  6. Step 6: Final answer
    x = 88,513.05

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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.