Home / 99,001.56-136,609.68-56,562.82

Finding the Fourth Proportional to 99,001.56, 136,609.68 and 56,562.82

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Solution

The fourth proportional to 99,001.56, 136,609.68 and 56,562.82 is: 78,049.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,001.56 : 136,609.68 = 56,562.82 : x
  2. Step 2: Convert to fraction form
    99,001.56/136,609.68 = 56,562.82/x
  3. Step 3: Cross multiply
    99,001.56x = 136,609.68 × 56,562.82
  4. Step 4: Simplify right side
    99,001.56x = 7,727,028,740.10
  5. Step 5: Solve for x
    x = 7,727,028,740.10/99,001.56
  6. Step 6: Final answer
    x = 78,049.57

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1.5x scale

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.