Home / 75,009.13-103,512.62-42,742.82

Finding the Fourth Proportional to 75,009.13, 103,512.62 and 42,742.82

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Solution

The fourth proportional to 75,009.13, 103,512.62 and 42,742.82 is: 58,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,009.13 : 103,512.62 = 42,742.82 : x
  2. Step 2: Convert to fraction form
    75,009.13/103,512.62 = 42,742.82/x
  3. Step 3: Cross multiply
    75,009.13x = 103,512.62 × 42,742.82
  4. Step 4: Simplify right side
    75,009.13x = 4,424,421,650.03
  5. Step 5: Solve for x
    x = 4,424,421,650.03/75,009.13
  6. Step 6: Final answer
    x = 58,985.11

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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.