Home / 63,405.12-87,473.92-40,740.64

Finding the Fourth Proportional to 63,405.12, 87,473.92 and 40,740.64

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Solution

The fourth proportional to 63,405.12, 87,473.92 and 40,740.64 is: 56,205.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,405.12 : 87,473.92 = 40,740.64 : x
  2. Step 2: Convert to fraction form
    63,405.12/87,473.92 = 40,740.64/x
  3. Step 3: Cross multiply
    63,405.12x = 87,473.92 × 40,740.64
  4. Step 4: Simplify right side
    63,405.12x = 3,563,743,484.11
  5. Step 5: Solve for x
    x = 3,563,743,484.11/63,405.12
  6. Step 6: Final answer
    x = 56,205.93

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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.