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Finding the Fourth Proportional to 51,370.52, 70,893.50 and 28,709.51

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Solution

The fourth proportional to 51,370.52, 70,893.50 and 28,709.51 is: 39,620.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,370.52 : 70,893.50 = 28,709.51 : x
  2. Step 2: Convert to fraction form
    51,370.52/70,893.50 = 28,709.51/x
  3. Step 3: Cross multiply
    51,370.52x = 70,893.50 × 28,709.51
  4. Step 4: Simplify right side
    51,370.52x = 2,035,317,647.19
  5. Step 5: Solve for x
    x = 2,035,317,647.19/51,370.52
  6. Step 6: Final answer
    x = 39,620.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.