Home / 51,540.21-77,661.44-42,385.32

Finding the Fourth Proportional to 51,540.21, 77,661.44 and 42,385.32

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Solution

The fourth proportional to 51,540.21, 77,661.44 and 42,385.32 is: 63,866.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,540.21 : 77,661.44 = 42,385.32 : x
  2. Step 2: Convert to fraction form
    51,540.21/77,661.44 = 42,385.32/x
  3. Step 3: Cross multiply
    51,540.21x = 77,661.44 × 42,385.32
  4. Step 4: Simplify right side
    51,540.21x = 3,291,704,986.06
  5. Step 5: Solve for x
    x = 3,291,704,986.06/51,540.21
  6. Step 6: Final answer
    x = 63,866.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.