Home / 85,365.32-117,811.98-47,131.70

Finding the Fourth Proportional to 85,365.32, 117,811.98 and 47,131.70

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Solution

The fourth proportional to 85,365.32, 117,811.98 and 47,131.70 is: 65,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,365.32 : 117,811.98 = 47,131.70 : x
  2. Step 2: Convert to fraction form
    85,365.32/117,811.98 = 47,131.70/x
  3. Step 3: Cross multiply
    85,365.32x = 117,811.98 × 47,131.70
  4. Step 4: Simplify right side
    85,365.32x = 5,552,678,897.77
  5. Step 5: Solve for x
    x = 5,552,678,897.77/85,365.32
  6. Step 6: Final answer
    x = 65,046.07

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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.