Home / 75,705.10-113,571.42-31,307.74

Finding the Fourth Proportional to 75,705.10, 113,571.42 and 31,307.74

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Solution

The fourth proportional to 75,705.10, 113,571.42 and 31,307.74 is: 46,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,705.10 : 113,571.42 = 31,307.74 : x
  2. Step 2: Convert to fraction form
    75,705.10/113,571.42 = 31,307.74/x
  3. Step 3: Cross multiply
    75,705.10x = 113,571.42 × 31,307.74
  4. Step 4: Simplify right side
    75,705.10x = 3,555,664,488.79
  5. Step 5: Solve for x
    x = 3,555,664,488.79/75,705.10
  6. Step 6: Final answer
    x = 46,967.30

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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.