Home / 96,919.80-133,729.71-56,625.78

Finding the Fourth Proportional to 96,919.80, 133,729.71 and 56,625.78

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Solution

The fourth proportional to 96,919.80, 133,729.71 and 56,625.78 is: 78,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,919.80 : 133,729.71 = 56,625.78 : x
  2. Step 2: Convert to fraction form
    96,919.80/133,729.71 = 56,625.78/x
  3. Step 3: Cross multiply
    96,919.80x = 133,729.71 × 56,625.78
  4. Step 4: Simplify right side
    96,919.80x = 7,572,549,137.92
  5. Step 5: Solve for x
    x = 7,572,549,137.92/96,919.80
  6. Step 6: Final answer
    x = 78,132.12

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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.