Home / 86,429.18-119,272.28-48,704.78

Finding the Fourth Proportional to 86,429.18, 119,272.28 and 48,704.78

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Solution

The fourth proportional to 86,429.18, 119,272.28 and 48,704.78 is: 67,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,429.18 : 119,272.28 = 48,704.78 : x
  2. Step 2: Convert to fraction form
    86,429.18/119,272.28 = 48,704.78/x
  3. Step 3: Cross multiply
    86,429.18x = 119,272.28 × 48,704.78
  4. Step 4: Simplify right side
    86,429.18x = 5,809,130,157.50
  5. Step 5: Solve for x
    x = 5,809,130,157.50/86,429.18
  6. Step 6: Final answer
    x = 67,212.60

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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.