Home / 85,769.32-118,367.89-51,786.07

Finding the Fourth Proportional to 85,769.32, 118,367.89 and 51,786.07

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Solution

The fourth proportional to 85,769.32, 118,367.89 and 51,786.07 is: 71,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,769.32 : 118,367.89 = 51,786.07 : x
  2. Step 2: Convert to fraction form
    85,769.32/118,367.89 = 51,786.07/x
  3. Step 3: Cross multiply
    85,769.32x = 118,367.89 × 51,786.07
  4. Step 4: Simplify right side
    85,769.32x = 6,129,807,837.29
  5. Step 5: Solve for x
    x = 6,129,807,837.29/85,769.32
  6. Step 6: Final answer
    x = 71,468.54

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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.