Home / 50,276.16-75,412.80-20,685.60

Finding the Fourth Proportional to 50,276.16, 75,412.80 and 20,685.60

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Solution

The fourth proportional to 50,276.16, 75,412.80 and 20,685.60 is: 31,027.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,276.16 : 75,412.80 = 20,685.60 : x
  2. Step 2: Convert to fraction form
    50,276.16/75,412.80 = 20,685.60/x
  3. Step 3: Cross multiply
    50,276.16x = 75,412.80 × 20,685.60
  4. Step 4: Simplify right side
    50,276.16x = 1,559,959,015.68
  5. Step 5: Solve for x
    x = 1,559,959,015.68/50,276.16
  6. Step 6: Final answer
    x = 31,027.81

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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.