Home / 55,031.44-75,939.24-31,152.64

Finding the Fourth Proportional to 55,031.44, 75,939.24 and 31,152.64

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Solution

The fourth proportional to 55,031.44, 75,939.24 and 31,152.64 is: 42,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,031.44 : 75,939.24 = 31,152.64 : x
  2. Step 2: Convert to fraction form
    55,031.44/75,939.24 = 31,152.64/x
  3. Step 3: Cross multiply
    55,031.44x = 75,939.24 × 31,152.64
  4. Step 4: Simplify right side
    55,031.44x = 2,365,707,805.59
  5. Step 5: Solve for x
    x = 2,365,707,805.59/55,031.44
  6. Step 6: Final answer
    x = 42,988.30

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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.