Home / 75,009.38-103,512.97-42,743.07

Finding the Fourth Proportional to 75,009.38, 103,512.97 and 42,743.07

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Solution

The fourth proportional to 75,009.38, 103,512.97 and 42,743.07 is: 58,985.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,009.38 : 103,512.97 = 42,743.07 : x
  2. Step 2: Convert to fraction form
    75,009.38/103,512.97 = 42,743.07/x
  3. Step 3: Cross multiply
    75,009.38x = 103,512.97 × 42,743.07
  4. Step 4: Simplify right side
    75,009.38x = 4,424,462,274.54
  5. Step 5: Solve for x
    x = 4,424,462,274.54/75,009.38
  6. Step 6: Final answer
    x = 58,985.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.