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Finding the Fourth Proportional to 53,402.30, 80,079.14 and 28,435.94

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Solution

The fourth proportional to 53,402.30, 80,079.14 and 28,435.94 is: 42,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,402.30 : 80,079.14 = 28,435.94 : x
  2. Step 2: Convert to fraction form
    53,402.30/80,079.14 = 28,435.94/x
  3. Step 3: Cross multiply
    53,402.30x = 80,079.14 × 28,435.94
  4. Step 4: Simplify right side
    53,402.30x = 2,277,125,620.29
  5. Step 5: Solve for x
    x = 2,277,125,620.29/53,402.30
  6. Step 6: Final answer
    x = 42,640.97

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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.