Home / 56,724.40-85,000.20-47,911.60

Finding the Fourth Proportional to 56,724.40, 85,000.20 and 47,911.60

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Solution

The fourth proportional to 56,724.40, 85,000.20 and 47,911.60 is: 71,794.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,724.40 : 85,000.20 = 47,911.60 : x
  2. Step 2: Convert to fraction form
    56,724.40/85,000.20 = 47,911.60/x
  3. Step 3: Cross multiply
    56,724.40x = 85,000.20 × 47,911.60
  4. Step 4: Simplify right side
    56,724.40x = 4,072,495,582.32
  5. Step 5: Solve for x
    x = 4,072,495,582.32/56,724.40
  6. Step 6: Final answer
    x = 71,794.42

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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.