Home / 42,643.06-63,912.70-30,166.68

Finding the Fourth Proportional to 42,643.06, 63,912.70 and 30,166.68

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Solution

The fourth proportional to 42,643.06, 63,912.70 and 30,166.68 is: 45,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,643.06 : 63,912.70 = 30,166.68 : x
  2. Step 2: Convert to fraction form
    42,643.06/63,912.70 = 30,166.68/x
  3. Step 3: Cross multiply
    42,643.06x = 63,912.70 × 30,166.68
  4. Step 4: Simplify right side
    42,643.06x = 1,928,033,717.02
  5. Step 5: Solve for x
    x = 1,928,033,717.02/42,643.06
  6. Step 6: Final answer
    x = 45,213.31

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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.