Home / 96,918.80-133,728.33-56,624.78

Finding the Fourth Proportional to 96,918.80, 133,728.33 and 56,624.78

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Solution

The fourth proportional to 96,918.80, 133,728.33 and 56,624.78 is: 78,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,918.80 : 133,728.33 = 56,624.78 : x
  2. Step 2: Convert to fraction form
    96,918.80/133,728.33 = 56,624.78/x
  3. Step 3: Cross multiply
    96,918.80x = 133,728.33 × 56,624.78
  4. Step 4: Simplify right side
    96,918.80x = 7,572,337,060.46
  5. Step 5: Solve for x
    x = 7,572,337,060.46/96,918.80
  6. Step 6: Final answer
    x = 78,130.73

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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.