Home / 57,026.16-78,696.20-31,875.64

Finding the Fourth Proportional to 57,026.16, 78,696.20 and 31,875.64

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Solution

The fourth proportional to 57,026.16, 78,696.20 and 31,875.64 is: 43,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,026.16 : 78,696.20 = 31,875.64 : x
  2. Step 2: Convert to fraction form
    57,026.16/78,696.20 = 31,875.64/x
  3. Step 3: Cross multiply
    57,026.16x = 78,696.20 × 31,875.64
  4. Step 4: Simplify right side
    57,026.16x = 2,508,491,740.57
  5. Step 5: Solve for x
    x = 2,508,491,740.57/57,026.16
  6. Step 6: Final answer
    x = 43,988.44

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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.