Home / 57,013.70-78,677.37-31,518.27

Finding the Fourth Proportional to 57,013.70, 78,677.37 and 31,518.27

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Solution

The fourth proportional to 57,013.70, 78,677.37 and 31,518.27 is: 43,494.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,013.70 : 78,677.37 = 31,518.27 : x
  2. Step 2: Convert to fraction form
    57,013.70/78,677.37 = 31,518.27/x
  3. Step 3: Cross multiply
    57,013.70x = 78,677.37 × 31,518.27
  4. Step 4: Simplify right side
    57,013.70x = 2,479,774,590.55
  5. Step 5: Solve for x
    x = 2,479,774,590.55/57,013.70
  6. Step 6: Final answer
    x = 43,494.37

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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.