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Finding the Fourth Proportional to 53,225.52, 79,838.52 and 13,779.84

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Solution

The fourth proportional to 53,225.52, 79,838.52 and 13,779.84 is: 20,669.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,225.52 : 79,838.52 = 13,779.84 : x
  2. Step 2: Convert to fraction form
    53,225.52/79,838.52 = 13,779.84/x
  3. Step 3: Cross multiply
    53,225.52x = 79,838.52 × 13,779.84
  4. Step 4: Simplify right side
    53,225.52x = 1,100,162,031.44
  5. Step 5: Solve for x
    x = 1,100,162,031.44/53,225.52
  6. Step 6: Final answer
    x = 20,669.82

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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.