Home / 75,108.86-103,646.22-42,844.32

Finding the Fourth Proportional to 75,108.86, 103,646.22 and 42,844.32

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Solution

The fourth proportional to 75,108.86, 103,646.22 and 42,844.32 is: 59,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,108.86 : 103,646.22 = 42,844.32 : x
  2. Step 2: Convert to fraction form
    75,108.86/103,646.22 = 42,844.32/x
  3. Step 3: Cross multiply
    75,108.86x = 103,646.22 × 42,844.32
  4. Step 4: Simplify right side
    75,108.86x = 4,440,651,816.47
  5. Step 5: Solve for x
    x = 4,440,651,816.47/75,108.86
  6. Step 6: Final answer
    x = 59,122.88

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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.