Home / 51,397.19-77,107.12-21,840.29

Finding the Fourth Proportional to 51,397.19, 77,107.12 and 21,840.29

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Solution

The fourth proportional to 51,397.19, 77,107.12 and 21,840.29 is: 32,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,397.19 : 77,107.12 = 21,840.29 : x
  2. Step 2: Convert to fraction form
    51,397.19/77,107.12 = 21,840.29/x
  3. Step 3: Cross multiply
    51,397.19x = 77,107.12 × 21,840.29
  4. Step 4: Simplify right side
    51,397.19x = 1,684,041,861.86
  5. Step 5: Solve for x
    x = 1,684,041,861.86/51,397.19
  6. Step 6: Final answer
    x = 32,765.25

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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.