Home / 85,180.09-127,628.89-51,799.18

Finding the Fourth Proportional to 85,180.09, 127,628.89 and 51,799.18

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Solution

The fourth proportional to 85,180.09, 127,628.89 and 51,799.18 is: 77,612.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,180.09 : 127,628.89 = 51,799.18 : x
  2. Step 2: Convert to fraction form
    85,180.09/127,628.89 = 51,799.18/x
  3. Step 3: Cross multiply
    85,180.09x = 127,628.89 × 51,799.18
  4. Step 4: Simplify right side
    85,180.09x = 6,611,071,846.31
  5. Step 5: Solve for x
    x = 6,611,071,846.31/85,180.09
  6. Step 6: Final answer
    x = 77,612.88

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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.