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Finding the Fourth Proportional to 75,155.42, 103,714.54 and 41,621.42

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Solution

The fourth proportional to 75,155.42, 103,714.54 and 41,621.42 is: 57,437.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,155.42 : 103,714.54 = 41,621.42 : x
  2. Step 2: Convert to fraction form
    75,155.42/103,714.54 = 41,621.42/x
  3. Step 3: Cross multiply
    75,155.42x = 103,714.54 × 41,621.42
  4. Step 4: Simplify right side
    75,155.42x = 4,316,746,429.45
  5. Step 5: Solve for x
    x = 4,316,746,429.45/75,155.42
  6. Step 6: Final answer
    x = 57,437.59

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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.