Home / 79,748.59-119,623.02-74,877.04

Finding the Fourth Proportional to 79,748.59, 119,623.02 and 74,877.04

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Solution

The fourth proportional to 79,748.59, 119,623.02 and 74,877.04 is: 112,315.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,748.59 : 119,623.02 = 74,877.04 : x
  2. Step 2: Convert to fraction form
    79,748.59/119,623.02 = 74,877.04/x
  3. Step 3: Cross multiply
    79,748.59x = 119,623.02 × 74,877.04
  4. Step 4: Simplify right side
    79,748.59x = 8,957,017,653.46
  5. Step 5: Solve for x
    x = 8,957,017,653.46/79,748.59
  6. Step 6: Final answer
    x = 112,315.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.