Home / 80,870.28-111,603.33-46,878.90

Finding the Fourth Proportional to 80,870.28, 111,603.33 and 46,878.90

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Solution

The fourth proportional to 80,870.28, 111,603.33 and 46,878.90 is: 64,694.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,870.28 : 111,603.33 = 46,878.90 : x
  2. Step 2: Convert to fraction form
    80,870.28/111,603.33 = 46,878.90/x
  3. Step 3: Cross multiply
    80,870.28x = 111,603.33 × 46,878.90
  4. Step 4: Simplify right side
    80,870.28x = 5,231,841,346.74
  5. Step 5: Solve for x
    x = 5,231,841,346.74/80,870.28
  6. Step 6: Final answer
    x = 64,694.24

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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.