Home / 86,946.30-130,447.44-39,578.34

Finding the Fourth Proportional to 86,946.30, 130,447.44 and 39,578.34

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Solution

The fourth proportional to 86,946.30, 130,447.44 and 39,578.34 is: 59,380.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,946.30 : 130,447.44 = 39,578.34 : x
  2. Step 2: Convert to fraction form
    86,946.30/130,447.44 = 39,578.34/x
  3. Step 3: Cross multiply
    86,946.30x = 130,447.44 × 39,578.34
  4. Step 4: Simplify right side
    86,946.30x = 5,162,893,132.45
  5. Step 5: Solve for x
    x = 5,162,893,132.45/86,946.30
  6. Step 6: Final answer
    x = 59,380.25

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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.