Home / 85,124.30-117,470.39-47,398.55

Finding the Fourth Proportional to 85,124.30, 117,470.39 and 47,398.55

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Solution

The fourth proportional to 85,124.30, 117,470.39 and 47,398.55 is: 65,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,124.30 : 117,470.39 = 47,398.55 : x
  2. Step 2: Convert to fraction form
    85,124.30/117,470.39 = 47,398.55/x
  3. Step 3: Cross multiply
    85,124.30x = 117,470.39 × 47,398.55
  4. Step 4: Simplify right side
    85,124.30x = 5,567,925,329.59
  5. Step 5: Solve for x
    x = 5,567,925,329.59/85,124.30
  6. Step 6: Final answer
    x = 65,409.36

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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.