Home / 98,805.28-136,381.94-56,392.04

Finding the Fourth Proportional to 98,805.28, 136,381.94 and 56,392.04

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Solution

The fourth proportional to 98,805.28, 136,381.94 and 56,392.04 is: 77,838.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,805.28 : 136,381.94 = 56,392.04 : x
  2. Step 2: Convert to fraction form
    98,805.28/136,381.94 = 56,392.04/x
  3. Step 3: Cross multiply
    98,805.28x = 136,381.94 × 56,392.04
  4. Step 4: Simplify right side
    98,805.28x = 7,690,855,815.76
  5. Step 5: Solve for x
    x = 7,690,855,815.76/98,805.28
  6. Step 6: Final answer
    x = 77,838.51

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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.