Home / 57,031.68-78,696.85-31,534.60

Finding the Fourth Proportional to 57,031.68, 78,696.85 and 31,534.60

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Solution

The fourth proportional to 57,031.68, 78,696.85 and 31,534.60 is: 43,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,031.68 : 78,696.85 = 31,534.60 : x
  2. Step 2: Convert to fraction form
    57,031.68/78,696.85 = 31,534.60/x
  3. Step 3: Cross multiply
    57,031.68x = 78,696.85 × 31,534.60
  4. Step 4: Simplify right side
    57,031.68x = 2,481,673,686.01
  5. Step 5: Solve for x
    x = 2,481,673,686.01/57,031.68
  6. Step 6: Final answer
    x = 43,513.95

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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.