Home / 75,415.74-113,142.15-53,272.32

Finding the Fourth Proportional to 75,415.74, 113,142.15 and 53,272.32

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Solution

The fourth proportional to 75,415.74, 113,142.15 and 53,272.32 is: 79,921.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,415.74 : 113,142.15 = 53,272.32 : x
  2. Step 2: Convert to fraction form
    75,415.74/113,142.15 = 53,272.32/x
  3. Step 3: Cross multiply
    75,415.74x = 113,142.15 × 53,272.32
  4. Step 4: Simplify right side
    75,415.74x = 6,027,344,820.29
  5. Step 5: Solve for x
    x = 6,027,344,820.29/75,415.74
  6. Step 6: Final answer
    x = 79,921.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.