Home / 85,384.04-117,834.54-49,585.28

Finding the Fourth Proportional to 85,384.04, 117,834.54 and 49,585.28

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Solution

The fourth proportional to 85,384.04, 117,834.54 and 49,585.28 is: 68,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,384.04 : 117,834.54 = 49,585.28 : x
  2. Step 2: Convert to fraction form
    85,384.04/117,834.54 = 49,585.28/x
  3. Step 3: Cross multiply
    85,384.04x = 117,834.54 × 49,585.28
  4. Step 4: Simplify right side
    85,384.04x = 5,842,858,659.57
  5. Step 5: Solve for x
    x = 5,842,858,659.57/85,384.04
  6. Step 6: Final answer
    x = 68,430.34

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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.