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Finding the Fourth Proportional to 64,165.10, 88,604.55 and 40,007.30

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Solution

The fourth proportional to 64,165.10, 88,604.55 and 40,007.30 is: 55,245.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,165.10 : 88,604.55 = 40,007.30 : x
  2. Step 2: Convert to fraction form
    64,165.10/88,604.55 = 40,007.30/x
  3. Step 3: Cross multiply
    64,165.10x = 88,604.55 × 40,007.30
  4. Step 4: Simplify right side
    64,165.10x = 3,544,828,370.19
  5. Step 5: Solve for x
    x = 3,544,828,370.19/64,165.10
  6. Step 6: Final answer
    x = 55,245.43

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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.