Home / 85,612.48-118,140.24-47,369.80

Finding the Fourth Proportional to 85,612.48, 118,140.24 and 47,369.80

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Solution

The fourth proportional to 85,612.48, 118,140.24 and 47,369.80 is: 65,367.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,612.48 : 118,140.24 = 47,369.80 : x
  2. Step 2: Convert to fraction form
    85,612.48/118,140.24 = 47,369.80/x
  3. Step 3: Cross multiply
    85,612.48x = 118,140.24 × 47,369.80
  4. Step 4: Simplify right side
    85,612.48x = 5,596,279,540.75
  5. Step 5: Solve for x
    x = 5,596,279,540.75/85,612.48
  6. Step 6: Final answer
    x = 65,367.57

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1.5x scale

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.