Home / 82,787.97-114,211.97-64,810.83

Finding the Fourth Proportional to 82,787.97, 114,211.97 and 64,810.83

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Solution

The fourth proportional to 82,787.97, 114,211.97 and 64,810.83 is: 89,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,787.97 : 114,211.97 = 64,810.83 : x
  2. Step 2: Convert to fraction form
    82,787.97/114,211.97 = 64,810.83/x
  3. Step 3: Cross multiply
    82,787.97x = 114,211.97 × 64,810.83
  4. Step 4: Simplify right side
    82,787.97x = 7,402,173,283.48
  5. Step 5: Solve for x
    x = 7,402,173,283.48/82,787.97
  6. Step 6: Final answer
    x = 89,411.21

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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.