Home / 57,030.66-78,702.82-31,538.75

Finding the Fourth Proportional to 57,030.66, 78,702.82 and 31,538.75

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Solution

The fourth proportional to 57,030.66, 78,702.82 and 31,538.75 is: 43,523.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,030.66 : 78,702.82 = 31,538.75 : x
  2. Step 2: Convert to fraction form
    57,030.66/78,702.82 = 31,538.75/x
  3. Step 3: Cross multiply
    57,030.66x = 78,702.82 × 31,538.75
  4. Step 4: Simplify right side
    57,030.66x = 2,482,188,564.28
  5. Step 5: Solve for x
    x = 2,482,188,564.28/57,030.66
  6. Step 6: Final answer
    x = 43,523.76

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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.