Home / 53,111.87-79,671.90-13,669.37

Finding the Fourth Proportional to 53,111.87, 79,671.90 and 13,669.37

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Solution

The fourth proportional to 53,111.87, 79,671.90 and 13,669.37 is: 20,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,111.87 : 79,671.90 = 13,669.37 : x
  2. Step 2: Convert to fraction form
    53,111.87/79,671.90 = 13,669.37/x
  3. Step 3: Cross multiply
    53,111.87x = 79,671.90 × 13,669.37
  4. Step 4: Simplify right side
    53,111.87x = 1,089,064,679.70
  5. Step 5: Solve for x
    x = 1,089,064,679.70/53,111.87
  6. Step 6: Final answer
    x = 20,505.11

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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.