Home / 88,705.74-133,100.12-38,779.37

Finding the Fourth Proportional to 88,705.74, 133,100.12 and 38,779.37

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Solution

The fourth proportional to 88,705.74, 133,100.12 and 38,779.37 is: 58,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,705.74 : 133,100.12 = 38,779.37 : x
  2. Step 2: Convert to fraction form
    88,705.74/133,100.12 = 38,779.37/x
  3. Step 3: Cross multiply
    88,705.74x = 133,100.12 × 38,779.37
  4. Step 4: Simplify right side
    88,705.74x = 5,161,538,231.97
  5. Step 5: Solve for x
    x = 5,161,538,231.97/88,705.74
  6. Step 6: Final answer
    x = 58,187.20

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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.