Home / 50,901.85-76,382.55-21,317.20

Finding the Fourth Proportional to 50,901.85, 76,382.55 and 21,317.20

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Solution

The fourth proportional to 50,901.85, 76,382.55 and 21,317.20 is: 31,988.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,901.85 : 76,382.55 = 21,317.20 : x
  2. Step 2: Convert to fraction form
    50,901.85/76,382.55 = 21,317.20/x
  3. Step 3: Cross multiply
    50,901.85x = 76,382.55 × 21,317.20
  4. Step 4: Simplify right side
    50,901.85x = 1,628,262,094.86
  5. Step 5: Solve for x
    x = 1,628,262,094.86/50,901.85
  6. Step 6: Final answer
    x = 31,988.27

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1.5x scale

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.