Home / 57,275.08-79,040.04-31,781.54

Finding the Fourth Proportional to 57,275.08, 79,040.04 and 31,781.54

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Solution

The fourth proportional to 57,275.08, 79,040.04 and 31,781.54 is: 43,858.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,275.08 : 79,040.04 = 31,781.54 : x
  2. Step 2: Convert to fraction form
    57,275.08/79,040.04 = 31,781.54/x
  3. Step 3: Cross multiply
    57,275.08x = 79,040.04 × 31,781.54
  4. Step 4: Simplify right side
    57,275.08x = 2,512,014,271.28
  5. Step 5: Solve for x
    x = 2,512,014,271.28/57,275.08
  6. Step 6: Final answer
    x = 43,858.77

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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.