Home / 51,570.89-77,356.40-14,131.28

Finding the Fourth Proportional to 51,570.89, 77,356.40 and 14,131.28

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Solution

The fourth proportional to 51,570.89, 77,356.40 and 14,131.28 is: 21,196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,570.89 : 77,356.40 = 14,131.28 : x
  2. Step 2: Convert to fraction form
    51,570.89/77,356.40 = 14,131.28/x
  3. Step 3: Cross multiply
    51,570.89x = 77,356.40 × 14,131.28
  4. Step 4: Simplify right side
    51,570.89x = 1,093,144,490.75
  5. Step 5: Solve for x
    x = 1,093,144,490.75/51,570.89
  6. Step 6: Final answer
    x = 21,196.93

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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.