Home / 85,002.48-127,520.73-47,615.72

Finding the Fourth Proportional to 85,002.48, 127,520.73 and 47,615.72

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Solution

The fourth proportional to 85,002.48, 127,520.73 and 47,615.72 is: 71,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,002.48 : 127,520.73 = 47,615.72 : x
  2. Step 2: Convert to fraction form
    85,002.48/127,520.73 = 47,615.72/x
  3. Step 3: Cross multiply
    85,002.48x = 127,520.73 × 47,615.72
  4. Step 4: Simplify right side
    85,002.48x = 6,071,990,736.27
  5. Step 5: Solve for x
    x = 6,071,990,736.27/85,002.48
  6. Step 6: Final answer
    x = 71,433.10

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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.