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Finding the Fourth Proportional to 53,801.63, 80,715.40 and 16,865.63

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Solution

The fourth proportional to 53,801.63, 80,715.40 and 16,865.63 is: 25,302.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,801.63 : 80,715.40 = 16,865.63 : x
  2. Step 2: Convert to fraction form
    53,801.63/80,715.40 = 16,865.63/x
  3. Step 3: Cross multiply
    53,801.63x = 80,715.40 × 16,865.63
  4. Step 4: Simplify right side
    53,801.63x = 1,361,316,071.70
  5. Step 5: Solve for x
    x = 1,361,316,071.70/53,801.63
  6. Step 6: Final answer
    x = 25,302.51

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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.