Home / 52,344.24-78,470.25-20,776.47

Finding the Fourth Proportional to 52,344.24, 78,470.25 and 20,776.47

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Solution

The fourth proportional to 52,344.24, 78,470.25 and 20,776.47 is: 31,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,344.24 : 78,470.25 = 20,776.47 : x
  2. Step 2: Convert to fraction form
    52,344.24/78,470.25 = 20,776.47/x
  3. Step 3: Cross multiply
    52,344.24x = 78,470.25 × 20,776.47
  4. Step 4: Simplify right side
    52,344.24x = 1,630,334,795.02
  5. Step 5: Solve for x
    x = 1,630,334,795.02/52,344.24
  6. Step 6: Final answer
    x = 31,146.40

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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.