Home / 52,045.79-78,079.49-20,883.47

Finding the Fourth Proportional to 52,045.79, 78,079.49 and 20,883.47

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Solution

The fourth proportional to 52,045.79, 78,079.49 and 20,883.47 is: 31,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,045.79 : 78,079.49 = 20,883.47 : x
  2. Step 2: Convert to fraction form
    52,045.79/78,079.49 = 20,883.47/x
  3. Step 3: Cross multiply
    52,045.79x = 78,079.49 × 20,883.47
  4. Step 4: Simplify right side
    52,045.79x = 1,630,570,582.61
  5. Step 5: Solve for x
    x = 1,630,570,582.61/52,045.79
  6. Step 6: Final answer
    x = 31,329.54

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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.