Home / 86,694.60-130,074.30-34,140.72

Finding the Fourth Proportional to 86,694.60, 130,074.30 and 34,140.72

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Solution

The fourth proportional to 86,694.60, 130,074.30 and 34,140.72 is: 51,223.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,694.60 : 130,074.30 = 34,140.72 : x
  2. Step 2: Convert to fraction form
    86,694.60/130,074.30 = 34,140.72/x
  3. Step 3: Cross multiply
    86,694.60x = 130,074.30 × 34,140.72
  4. Step 4: Simplify right side
    86,694.60x = 4,440,830,255.50
  5. Step 5: Solve for x
    x = 4,440,830,255.50/86,694.60
  6. Step 6: Final answer
    x = 51,223.84

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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.