Home / 75,183.12-112,823.28-35,784.72

Finding the Fourth Proportional to 75,183.12, 112,823.28 and 35,784.72

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Solution

The fourth proportional to 75,183.12, 112,823.28 and 35,784.72 is: 53,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,183.12 : 112,823.28 = 35,784.72 : x
  2. Step 2: Convert to fraction form
    75,183.12/112,823.28 = 35,784.72/x
  3. Step 3: Cross multiply
    75,183.12x = 112,823.28 × 35,784.72
  4. Step 4: Simplify right side
    75,183.12x = 4,037,349,484.28
  5. Step 5: Solve for x
    x = 4,037,349,484.28/75,183.12
  6. Step 6: Final answer
    x = 53,700.21

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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.