Home / 98,933.60-136,537.04-56,505.76

Finding the Fourth Proportional to 98,933.60, 136,537.04 and 56,505.76

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Solution

The fourth proportional to 98,933.60, 136,537.04 and 56,505.76 is: 77,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,933.60 : 136,537.04 = 56,505.76 : x
  2. Step 2: Convert to fraction form
    98,933.60/136,537.04 = 56,505.76/x
  3. Step 3: Cross multiply
    98,933.60x = 136,537.04 × 56,505.76
  4. Step 4: Simplify right side
    98,933.60x = 7,715,129,213.35
  5. Step 5: Solve for x
    x = 7,715,129,213.35/98,933.60
  6. Step 6: Final answer
    x = 77,982.90

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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.