Home / 86,965.40-130,491.30-34,376.60

Finding the Fourth Proportional to 86,965.40, 130,491.30 and 34,376.60

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Solution

The fourth proportional to 86,965.40, 130,491.30 and 34,376.60 is: 51,581.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,965.40 : 130,491.30 = 34,376.60 : x
  2. Step 2: Convert to fraction form
    86,965.40/130,491.30 = 34,376.60/x
  3. Step 3: Cross multiply
    86,965.40x = 130,491.30 × 34,376.60
  4. Step 4: Simplify right side
    86,965.40x = 4,485,847,223.58
  5. Step 5: Solve for x
    x = 4,485,847,223.58/86,965.40
  6. Step 6: Final answer
    x = 51,581.98

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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.