Home / 99,593.36-137,434.50-56,572.74

Finding the Fourth Proportional to 99,593.36, 137,434.50 and 56,572.74

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Solution

The fourth proportional to 99,593.36, 137,434.50 and 56,572.74 is: 78,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,593.36 : 137,434.50 = 56,572.74 : x
  2. Step 2: Convert to fraction form
    99,593.36/137,434.50 = 56,572.74/x
  3. Step 3: Cross multiply
    99,593.36x = 137,434.50 × 56,572.74
  4. Step 4: Simplify right side
    99,593.36x = 7,775,045,399.98
  5. Step 5: Solve for x
    x = 7,775,045,399.98/99,593.36
  6. Step 6: Final answer
    x = 78,067.91

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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.