Home / 57,070.62-78,755.94-31,576.32

Finding the Fourth Proportional to 57,070.62, 78,755.94 and 31,576.32

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Solution

The fourth proportional to 57,070.62, 78,755.94 and 31,576.32 is: 43,574.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,070.62 : 78,755.94 = 31,576.32 : x
  2. Step 2: Convert to fraction form
    57,070.62/78,755.94 = 31,576.32/x
  3. Step 3: Cross multiply
    57,070.62x = 78,755.94 × 31,576.32
  4. Step 4: Simplify right side
    57,070.62x = 2,486,822,763.34
  5. Step 5: Solve for x
    x = 2,486,822,763.34/57,070.62
  6. Step 6: Final answer
    x = 43,574.48

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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.