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Finding the Fourth Proportional to 63,478.10, 87,609 and 36,615.26

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Solution

The fourth proportional to 63,478.10, 87,609 and 36,615.26 is: 50,534.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,478.10 : 87,609 = 36,615.26 : x
  2. Step 2: Convert to fraction form
    63,478.10/87,609 = 36,615.26/x
  3. Step 3: Cross multiply
    63,478.10x = 87,609 × 36,615.26
  4. Step 4: Simplify right side
    63,478.10x = 3,207,826,313.34
  5. Step 5: Solve for x
    x = 3,207,826,313.34/63,478.10
  6. Step 6: Final answer
    x = 50,534.38

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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.