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Finding the Fourth Proportional to 53,235.80, 79,840.06 and 15,787.12

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Solution

The fourth proportional to 53,235.80, 79,840.06 and 15,787.12 is: 23,676.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,235.80 : 79,840.06 = 15,787.12 : x
  2. Step 2: Convert to fraction form
    53,235.80/79,840.06 = 15,787.12/x
  3. Step 3: Cross multiply
    53,235.80x = 79,840.06 × 15,787.12
  4. Step 4: Simplify right side
    53,235.80x = 1,260,444,608.03
  5. Step 5: Solve for x
    x = 1,260,444,608.03/53,235.80
  6. Step 6: Final answer
    x = 23,676.64

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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.