Home / 57,031.43-78,696.50-31,534.35

Finding the Fourth Proportional to 57,031.43, 78,696.50 and 31,534.35

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Solution

The fourth proportional to 57,031.43, 78,696.50 and 31,534.35 is: 43,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,031.43 : 78,696.50 = 31,534.35 : x
  2. Step 2: Convert to fraction form
    57,031.43/78,696.50 = 31,534.35/x
  3. Step 3: Cross multiply
    57,031.43x = 78,696.50 × 31,534.35
  4. Step 4: Simplify right side
    57,031.43x = 2,481,642,521.99
  5. Step 5: Solve for x
    x = 2,481,642,521.99/57,031.43
  6. Step 6: Final answer
    x = 43,513.60

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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.