Home / 99,695.08-137,570.34-57,249.64

Finding the Fourth Proportional to 99,695.08, 137,570.34 and 57,249.64

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Solution

The fourth proportional to 99,695.08, 137,570.34 and 57,249.64 is: 78,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,695.08 : 137,570.34 = 57,249.64 : x
  2. Step 2: Convert to fraction form
    99,695.08/137,570.34 = 57,249.64/x
  3. Step 3: Cross multiply
    99,695.08x = 137,570.34 × 57,249.64
  4. Step 4: Simplify right side
    99,695.08x = 7,875,852,439.68
  5. Step 5: Solve for x
    x = 7,875,852,439.68/99,695.08
  6. Step 6: Final answer
    x = 78,999.41

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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.