Home / 75,079.56-103,621.45-42,814.25

Finding the Fourth Proportional to 75,079.56, 103,621.45 and 42,814.25

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Solution

The fourth proportional to 75,079.56, 103,621.45 and 42,814.25 is: 59,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,079.56 : 103,621.45 = 42,814.25 : x
  2. Step 2: Convert to fraction form
    75,079.56/103,621.45 = 42,814.25/x
  3. Step 3: Cross multiply
    75,079.56x = 103,621.45 × 42,814.25
  4. Step 4: Simplify right side
    75,079.56x = 4,436,474,665.66
  5. Step 5: Solve for x
    x = 4,436,474,665.66/75,079.56
  6. Step 6: Final answer
    x = 59,090.31

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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.