Home / 74,015.71-111,035.21-31,907.76

Finding the Fourth Proportional to 74,015.71, 111,035.21 and 31,907.76

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Solution

The fourth proportional to 74,015.71, 111,035.21 and 31,907.76 is: 47,866.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,015.71 : 111,035.21 = 31,907.76 : x
  2. Step 2: Convert to fraction form
    74,015.71/111,035.21 = 31,907.76/x
  3. Step 3: Cross multiply
    74,015.71x = 111,035.21 × 31,907.76
  4. Step 4: Simplify right side
    74,015.71x = 3,542,884,832.23
  5. Step 5: Solve for x
    x = 3,542,884,832.23/74,015.71
  6. Step 6: Final answer
    x = 47,866.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.