Home / 86,865.06-130,148.73-47,449.74

Finding the Fourth Proportional to 86,865.06, 130,148.73 and 47,449.74

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Solution

The fourth proportional to 86,865.06, 130,148.73 and 47,449.74 is: 71,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,865.06 : 130,148.73 = 47,449.74 : x
  2. Step 2: Convert to fraction form
    86,865.06/130,148.73 = 47,449.74/x
  3. Step 3: Cross multiply
    86,865.06x = 130,148.73 × 47,449.74
  4. Step 4: Simplify right side
    86,865.06x = 6,175,523,399.83
  5. Step 5: Solve for x
    x = 6,175,523,399.83/86,865.06
  6. Step 6: Final answer
    x = 71,093.30

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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.