Home / 80,678.67-111,328.02-44,862.90

Finding the Fourth Proportional to 80,678.67, 111,328.02 and 44,862.90

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Solution

The fourth proportional to 80,678.67, 111,328.02 and 44,862.90 is: 61,906.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,678.67 : 111,328.02 = 44,862.90 : x
  2. Step 2: Convert to fraction form
    80,678.67/111,328.02 = 44,862.90/x
  3. Step 3: Cross multiply
    80,678.67x = 111,328.02 × 44,862.90
  4. Step 4: Simplify right side
    80,678.67x = 4,994,497,828.46
  5. Step 5: Solve for x
    x = 4,994,497,828.46/80,678.67
  6. Step 6: Final answer
    x = 61,906.05

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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.