Home / 45,543.42-68,338.37-30,721.28

Finding the Fourth Proportional to 45,543.42, 68,338.37 and 30,721.28

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Solution

The fourth proportional to 45,543.42, 68,338.37 and 30,721.28 is: 46,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,543.42 : 68,338.37 = 30,721.28 : x
  2. Step 2: Convert to fraction form
    45,543.42/68,338.37 = 30,721.28/x
  3. Step 3: Cross multiply
    45,543.42x = 68,338.37 × 30,721.28
  4. Step 4: Simplify right side
    45,543.42x = 2,099,442,199.51
  5. Step 5: Solve for x
    x = 2,099,442,199.51/45,543.42
  6. Step 6: Final answer
    x = 46,097.60

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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.