Home / 55,811.20-83,911.20-47,257.60

Finding the Fourth Proportional to 55,811.20, 83,911.20 and 47,257.60

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Solution

The fourth proportional to 55,811.20, 83,911.20 and 47,257.60 is: 71,051.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,811.20 : 83,911.20 = 47,257.60 : x
  2. Step 2: Convert to fraction form
    55,811.20/83,911.20 = 47,257.60/x
  3. Step 3: Cross multiply
    55,811.20x = 83,911.20 × 47,257.60
  4. Step 4: Simplify right side
    55,811.20x = 3,965,441,925.12
  5. Step 5: Solve for x
    x = 3,965,441,925.12/55,811.20
  6. Step 6: Final answer
    x = 71,051.01

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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.