Home / 63,478.91-87,561.07-40,847.31

Finding the Fourth Proportional to 63,478.91, 87,561.07 and 40,847.31

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Solution

The fourth proportional to 63,478.91, 87,561.07 and 40,847.31 is: 56,343.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,478.91 : 87,561.07 = 40,847.31 : x
  2. Step 2: Convert to fraction form
    63,478.91/87,561.07 = 40,847.31/x
  3. Step 3: Cross multiply
    63,478.91x = 87,561.07 × 40,847.31
  4. Step 4: Simplify right side
    63,478.91x = 3,576,634,068.10
  5. Step 5: Solve for x
    x = 3,576,634,068.10/63,478.91
  6. Step 6: Final answer
    x = 56,343.66

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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.