Home / 85,048.20-127,589.52-47,661.60

Finding the Fourth Proportional to 85,048.20, 127,589.52 and 47,661.60

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Solution

The fourth proportional to 85,048.20, 127,589.52 and 47,661.60 is: 71,502.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,048.20 : 127,589.52 = 47,661.60 : x
  2. Step 2: Convert to fraction form
    85,048.20/127,589.52 = 47,661.60/x
  3. Step 3: Cross multiply
    85,048.20x = 127,589.52 × 47,661.60
  4. Step 4: Simplify right side
    85,048.20x = 6,081,120,666.43
  5. Step 5: Solve for x
    x = 6,081,120,666.43/85,048.20
  6. Step 6: Final answer
    x = 71,502.05

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1.5x scale

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.