Home / 76,737.67-105,883.92-42,745.31

Finding the Fourth Proportional to 76,737.67, 105,883.92 and 42,745.31

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Solution

The fourth proportional to 76,737.67, 105,883.92 and 42,745.31 is: 58,980.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,737.67 : 105,883.92 = 42,745.31 : x
  2. Step 2: Convert to fraction form
    76,737.67/105,883.92 = 42,745.31/x
  3. Step 3: Cross multiply
    76,737.67x = 105,883.92 × 42,745.31
  4. Step 4: Simplify right side
    76,737.67x = 4,526,040,809.04
  5. Step 5: Solve for x
    x = 4,526,040,809.04/76,737.67
  6. Step 6: Final answer
    x = 58,980.69

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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.