Home / 51,853.32-77,770.62-14,415.90

Finding the Fourth Proportional to 51,853.32, 77,770.62 and 14,415.90

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Solution

The fourth proportional to 51,853.32, 77,770.62 and 14,415.90 is: 21,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,853.32 : 77,770.62 = 14,415.90 : x
  2. Step 2: Convert to fraction form
    51,853.32/77,770.62 = 14,415.90/x
  3. Step 3: Cross multiply
    51,853.32x = 77,770.62 × 14,415.90
  4. Step 4: Simplify right side
    51,853.32x = 1,121,133,480.86
  5. Step 5: Solve for x
    x = 1,121,133,480.86/51,853.32
  6. Step 6: Final answer
    x = 21,621.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.