Home / 86,787.19-130,254.75-34,233.58

Finding the Fourth Proportional to 86,787.19, 130,254.75 and 34,233.58

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Solution

The fourth proportional to 86,787.19, 130,254.75 and 34,233.58 is: 51,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,787.19 : 130,254.75 = 34,233.58 : x
  2. Step 2: Convert to fraction form
    86,787.19/130,254.75 = 34,233.58/x
  3. Step 3: Cross multiply
    86,787.19x = 130,254.75 × 34,233.58
  4. Step 4: Simplify right side
    86,787.19x = 4,459,086,404.51
  5. Step 5: Solve for x
    x = 4,459,086,404.51/86,787.19
  6. Step 6: Final answer
    x = 51,379.55

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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.