Home / 45,053.76-67,581.60-13,888.96

Finding the Fourth Proportional to 45,053.76, 67,581.60 and 13,888.96

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Solution

The fourth proportional to 45,053.76, 67,581.60 and 13,888.96 is: 20,833.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,053.76 : 67,581.60 = 13,888.96 : x
  2. Step 2: Convert to fraction form
    45,053.76/67,581.60 = 13,888.96/x
  3. Step 3: Cross multiply
    45,053.76x = 67,581.60 × 13,888.96
  4. Step 4: Simplify right side
    45,053.76x = 938,638,139.14
  5. Step 5: Solve for x
    x = 938,638,139.14/45,053.76
  6. Step 6: Final answer
    x = 20,833.74

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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.