Home / 83,564.79-115,276.46-54,880.32

Finding the Fourth Proportional to 83,564.79, 115,276.46 and 54,880.32

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Solution

The fourth proportional to 83,564.79, 115,276.46 and 54,880.32 is: 75,706.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,564.79 : 115,276.46 = 54,880.32 : x
  2. Step 2: Convert to fraction form
    83,564.79/115,276.46 = 54,880.32/x
  3. Step 3: Cross multiply
    83,564.79x = 115,276.46 × 54,880.32
  4. Step 4: Simplify right side
    83,564.79x = 6,326,409,013.27
  5. Step 5: Solve for x
    x = 6,326,409,013.27/83,564.79
  6. Step 6: Final answer
    x = 75,706.63

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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.