Home / 75,205.16-103,783.02-41,215.78

Finding the Fourth Proportional to 75,205.16, 103,783.02 and 41,215.78

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Solution

The fourth proportional to 75,205.16, 103,783.02 and 41,215.78 is: 56,877.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,205.16 : 103,783.02 = 41,215.78 : x
  2. Step 2: Convert to fraction form
    75,205.16/103,783.02 = 41,215.78/x
  3. Step 3: Cross multiply
    75,205.16x = 103,783.02 × 41,215.78
  4. Step 4: Simplify right side
    75,205.16x = 4,277,497,601.14
  5. Step 5: Solve for x
    x = 4,277,497,601.14/75,205.16
  6. Step 6: Final answer
    x = 56,877.72

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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.