Home / 74,731.44-112,112.54-30,358.14

Finding the Fourth Proportional to 74,731.44, 112,112.54 and 30,358.14

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Solution

The fourth proportional to 74,731.44, 112,112.54 and 30,358.14 is: 45,543.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,731.44 : 112,112.54 = 30,358.14 : x
  2. Step 2: Convert to fraction form
    74,731.44/112,112.54 = 30,358.14/x
  3. Step 3: Cross multiply
    74,731.44x = 112,112.54 × 30,358.14
  4. Step 4: Simplify right side
    74,731.44x = 3,403,528,185.08
  5. Step 5: Solve for x
    x = 3,403,528,185.08/74,731.44
  6. Step 6: Final answer
    x = 45,543.46

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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.