Home / 51,378.75-77,081.09-14,442.75

Finding the Fourth Proportional to 51,378.75, 77,081.09 and 14,442.75

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Solution

The fourth proportional to 51,378.75, 77,081.09 and 14,442.75 is: 21,667.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,378.75 : 77,081.09 = 14,442.75 : x
  2. Step 2: Convert to fraction form
    51,378.75/77,081.09 = 14,442.75/x
  3. Step 3: Cross multiply
    51,378.75x = 77,081.09 × 14,442.75
  4. Step 4: Simplify right side
    51,378.75x = 1,113,262,840.38
  5. Step 5: Solve for x
    x = 1,113,262,840.38/51,378.75
  6. Step 6: Final answer
    x = 21,667.77

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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.