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Finding the Fourth Proportional to 52,519.66, 72,478 and 28,646.34

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Solution

The fourth proportional to 52,519.66, 72,478 and 28,646.34 is: 39,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,519.66 : 72,478 = 28,646.34 : x
  2. Step 2: Convert to fraction form
    52,519.66/72,478 = 28,646.34/x
  3. Step 3: Cross multiply
    52,519.66x = 72,478 × 28,646.34
  4. Step 4: Simplify right side
    52,519.66x = 2,076,229,430.52
  5. Step 5: Solve for x
    x = 2,076,229,430.52/52,519.66
  6. Step 6: Final answer
    x = 39,532.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.