Home / 57,213.36-85,844.80-30,936.72

Finding the Fourth Proportional to 57,213.36, 85,844.80 and 30,936.72

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Solution

The fourth proportional to 57,213.36, 85,844.80 and 30,936.72 is: 46,418.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,213.36 : 85,844.80 = 30,936.72 : x
  2. Step 2: Convert to fraction form
    57,213.36/85,844.80 = 30,936.72/x
  3. Step 3: Cross multiply
    57,213.36x = 85,844.80 × 30,936.72
  4. Step 4: Simplify right side
    57,213.36x = 2,655,756,541.06
  5. Step 5: Solve for x
    x = 2,655,756,541.06/57,213.36
  6. Step 6: Final answer
    x = 46,418.47

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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.