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Finding the Fourth Proportional to 63,403.04, 87,471.24 and 40,738.64

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Solution

The fourth proportional to 63,403.04, 87,471.24 and 40,738.64 is: 56,203.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,403.04 : 87,471.24 = 40,738.64 : x
  2. Step 2: Convert to fraction form
    63,403.04/87,471.24 = 40,738.64/x
  3. Step 3: Cross multiply
    63,403.04x = 87,471.24 × 40,738.64
  4. Step 4: Simplify right side
    63,403.04x = 3,563,459,356.71
  5. Step 5: Solve for x
    x = 3,563,459,356.71/63,403.04
  6. Step 6: Final answer
    x = 56,203.29

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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.