Home / 84,870.15-117,121.13-46,632.79

Finding the Fourth Proportional to 84,870.15, 117,121.13 and 46,632.79

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Solution

The fourth proportional to 84,870.15, 117,121.13 and 46,632.79 is: 64,353.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,870.15 : 117,121.13 = 46,632.79 : x
  2. Step 2: Convert to fraction form
    84,870.15/117,121.13 = 46,632.79/x
  3. Step 3: Cross multiply
    84,870.15x = 117,121.13 × 46,632.79
  4. Step 4: Simplify right side
    84,870.15x = 5,461,685,059.85
  5. Step 5: Solve for x
    x = 5,461,685,059.85/84,870.15
  6. Step 6: Final answer
    x = 64,353.43

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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.