Home / 99,574.53-137,400.75-56,538.33

Finding the Fourth Proportional to 99,574.53, 137,400.75 and 56,538.33

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Solution

The fourth proportional to 99,574.53, 137,400.75 and 56,538.33 is: 78,016.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,574.53 : 137,400.75 = 56,538.33 : x
  2. Step 2: Convert to fraction form
    99,574.53/137,400.75 = 56,538.33/x
  3. Step 3: Cross multiply
    99,574.53x = 137,400.75 × 56,538.33
  4. Step 4: Simplify right side
    99,574.53x = 7,768,408,945.75
  5. Step 5: Solve for x
    x = 7,768,408,945.75/99,574.53
  6. Step 6: Final answer
    x = 78,016.02

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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.