Home / 74,791.02-112,100.40-30,369

Finding the Fourth Proportional to 74,791.02, 112,100.40 and 30,369

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Solution

The fourth proportional to 74,791.02, 112,100.40 and 30,369 is: 45,518.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,791.02 : 112,100.40 = 30,369 : x
  2. Step 2: Convert to fraction form
    74,791.02/112,100.40 = 30,369/x
  3. Step 3: Cross multiply
    74,791.02x = 112,100.40 × 30,369
  4. Step 4: Simplify right side
    74,791.02x = 3,404,377,047.60
  5. Step 5: Solve for x
    x = 3,404,377,047.60/74,791.02
  6. Step 6: Final answer
    x = 45,518.53

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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.