Home / 51,356.40-77,056.20-27,999.60

Finding the Fourth Proportional to 51,356.40, 77,056.20 and 27,999.60

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Solution

The fourth proportional to 51,356.40, 77,056.20 and 27,999.60 is: 42,011.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,356.40 : 77,056.20 = 27,999.60 : x
  2. Step 2: Convert to fraction form
    51,356.40/77,056.20 = 27,999.60/x
  3. Step 3: Cross multiply
    51,356.40x = 77,056.20 × 27,999.60
  4. Step 4: Simplify right side
    51,356.40x = 2,157,542,777.52
  5. Step 5: Solve for x
    x = 2,157,542,777.52/51,356.40
  6. Step 6: Final answer
    x = 42,011.18

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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.