Home / 99,617.70-137,456.64-56,001.64

Finding the Fourth Proportional to 99,617.70, 137,456.64 and 56,001.64

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Solution

The fourth proportional to 99,617.70, 137,456.64 and 56,001.64 is: 77,273.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,617.70 : 137,456.64 = 56,001.64 : x
  2. Step 2: Convert to fraction form
    99,617.70/137,456.64 = 56,001.64/x
  3. Step 3: Cross multiply
    99,617.70x = 137,456.64 × 56,001.64
  4. Step 4: Simplify right side
    99,617.70x = 7,697,797,268.89
  5. Step 5: Solve for x
    x = 7,697,797,268.89/99,617.70
  6. Step 6: Final answer
    x = 77,273.39

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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.