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Finding the Fourth Proportional to 53,302.32, 79,866 and 18,222.84

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Solution

The fourth proportional to 53,302.32, 79,866 and 18,222.84 is: 27,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,302.32 : 79,866 = 18,222.84 : x
  2. Step 2: Convert to fraction form
    53,302.32/79,866 = 18,222.84/x
  3. Step 3: Cross multiply
    53,302.32x = 79,866 × 18,222.84
  4. Step 4: Simplify right side
    53,302.32x = 1,455,385,339.44
  5. Step 5: Solve for x
    x = 1,455,385,339.44/53,302.32
  6. Step 6: Final answer
    x = 27,304.35

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1.5x scale

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.