Home / 51,146.40-76,713.36-13,709.28

Finding the Fourth Proportional to 51,146.40, 76,713.36 and 13,709.28

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Solution

The fourth proportional to 51,146.40, 76,713.36 and 13,709.28 is: 20,562.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,146.40 : 76,713.36 = 13,709.28 : x
  2. Step 2: Convert to fraction form
    51,146.40/76,713.36 = 13,709.28/x
  3. Step 3: Cross multiply
    51,146.40x = 76,713.36 × 13,709.28
  4. Step 4: Simplify right side
    51,146.40x = 1,051,684,931.98
  5. Step 5: Solve for x
    x = 1,051,684,931.98/51,146.40
  6. Step 6: Final answer
    x = 20,562.25

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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.