Home / 51,003.12-76,534.24-21,418.40

Finding the Fourth Proportional to 51,003.12, 76,534.24 and 21,418.40

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Solution

The fourth proportional to 51,003.12, 76,534.24 and 21,418.40 is: 32,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,003.12 : 76,534.24 = 21,418.40 : x
  2. Step 2: Convert to fraction form
    51,003.12/76,534.24 = 21,418.40/x
  3. Step 3: Cross multiply
    51,003.12x = 76,534.24 × 21,418.40
  4. Step 4: Simplify right side
    51,003.12x = 1,639,240,966.02
  5. Step 5: Solve for x
    x = 1,639,240,966.02/51,003.12
  6. Step 6: Final answer
    x = 32,140.01

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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.