Home / 94,176.78-129,970.08-65,891.58

Finding the Fourth Proportional to 94,176.78, 129,970.08 and 65,891.58

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Solution

The fourth proportional to 94,176.78, 129,970.08 and 65,891.58 is: 90,934.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,176.78 : 129,970.08 = 65,891.58 : x
  2. Step 2: Convert to fraction form
    94,176.78/129,970.08 = 65,891.58/x
  3. Step 3: Cross multiply
    94,176.78x = 129,970.08 × 65,891.58
  4. Step 4: Simplify right side
    94,176.78x = 8,563,933,923.93
  5. Step 5: Solve for x
    x = 8,563,933,923.93/94,176.78
  6. Step 6: Final answer
    x = 90,934.66

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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.