Home / 86,117.43-129,178.58-23,787.93

Finding the Fourth Proportional to 86,117.43, 129,178.58 and 23,787.93

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Solution

The fourth proportional to 86,117.43, 129,178.58 and 23,787.93 is: 35,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,117.43 : 129,178.58 = 23,787.93 : x
  2. Step 2: Convert to fraction form
    86,117.43/129,178.58 = 23,787.93/x
  3. Step 3: Cross multiply
    86,117.43x = 129,178.58 × 23,787.93
  4. Step 4: Simplify right side
    86,117.43x = 3,072,890,899.60
  5. Step 5: Solve for x
    x = 3,072,890,899.60/86,117.43
  6. Step 6: Final answer
    x = 35,682.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.