Home / 72,335.28-99,822.84-40,504.08

Finding the Fourth Proportional to 72,335.28, 99,822.84 and 40,504.08

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Solution

The fourth proportional to 72,335.28, 99,822.84 and 40,504.08 is: 55,895.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,335.28 : 99,822.84 = 40,504.08 : x
  2. Step 2: Convert to fraction form
    72,335.28/99,822.84 = 40,504.08/x
  3. Step 3: Cross multiply
    72,335.28x = 99,822.84 × 40,504.08
  4. Step 4: Simplify right side
    72,335.28x = 4,043,232,297.19
  5. Step 5: Solve for x
    x = 4,043,232,297.19/72,335.28
  6. Step 6: Final answer
    x = 55,895.72

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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.