Home / 86,489.28-119,340.96-48,762.72

Finding the Fourth Proportional to 86,489.28, 119,340.96 and 48,762.72

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Solution

The fourth proportional to 86,489.28, 119,340.96 and 48,762.72 is: 67,284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,489.28 : 119,340.96 = 48,762.72 : x
  2. Step 2: Convert to fraction form
    86,489.28/119,340.96 = 48,762.72/x
  3. Step 3: Cross multiply
    86,489.28x = 119,340.96 × 48,762.72
  4. Step 4: Simplify right side
    86,489.28x = 5,819,389,817.01
  5. Step 5: Solve for x
    x = 5,819,389,817.01/86,489.28
  6. Step 6: Final answer
    x = 67,284.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.