Home / 56,271.08-77,651.21-30,772.49

Finding the Fourth Proportional to 56,271.08, 77,651.21 and 30,772.49

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Solution

The fourth proportional to 56,271.08, 77,651.21 and 30,772.49 is: 42,464.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,271.08 : 77,651.21 = 30,772.49 : x
  2. Step 2: Convert to fraction form
    56,271.08/77,651.21 = 30,772.49/x
  3. Step 3: Cross multiply
    56,271.08x = 77,651.21 × 30,772.49
  4. Step 4: Simplify right side
    56,271.08x = 2,389,520,541.09
  5. Step 5: Solve for x
    x = 2,389,520,541.09/56,271.08
  6. Step 6: Final answer
    x = 42,464.46

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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.