Home / 212,619.26-318,920.91-52,695.72

Finding the Fourth Proportional to 212,619.26, 318,920.91 and 52,695.72

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Solution

The fourth proportional to 212,619.26, 318,920.91 and 52,695.72 is: 79,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,619.26 : 318,920.91 = 52,695.72 : x
  2. Step 2: Convert to fraction form
    212,619.26/318,920.91 = 52,695.72/x
  3. Step 3: Cross multiply
    212,619.26x = 318,920.91 × 52,695.72
  4. Step 4: Simplify right side
    212,619.26x = 16,805,766,975.51
  5. Step 5: Solve for x
    x = 16,805,766,975.51/212,619.26
  6. Step 6: Final answer
    x = 79,041.60

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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.