Home / 75,785.79-113,515.77-61,490.03

Finding the Fourth Proportional to 75,785.79, 113,515.77 and 61,490.03

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Solution

The fourth proportional to 75,785.79, 113,515.77 and 61,490.03 is: 92,102.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,785.79 : 113,515.77 = 61,490.03 : x
  2. Step 2: Convert to fraction form
    75,785.79/113,515.77 = 61,490.03/x
  3. Step 3: Cross multiply
    75,785.79x = 113,515.77 × 61,490.03
  4. Step 4: Simplify right side
    75,785.79x = 6,980,087,795.32
  5. Step 5: Solve for x
    x = 6,980,087,795.32/75,785.79
  6. Step 6: Final answer
    x = 92,102.86

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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.