Home / 56,759.62-78,325.23-31,607.50

Finding the Fourth Proportional to 56,759.62, 78,325.23 and 31,607.50

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Solution

The fourth proportional to 56,759.62, 78,325.23 and 31,607.50 is: 43,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,759.62 : 78,325.23 = 31,607.50 : x
  2. Step 2: Convert to fraction form
    56,759.62/78,325.23 = 31,607.50/x
  3. Step 3: Cross multiply
    56,759.62x = 78,325.23 × 31,607.50
  4. Step 4: Simplify right side
    56,759.62x = 2,475,664,707.23
  5. Step 5: Solve for x
    x = 2,475,664,707.23/56,759.62
  6. Step 6: Final answer
    x = 43,616.65

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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.