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Finding the Fourth Proportional to 276,051.75, 414,077.87 and 86,526.93

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Solution

The fourth proportional to 276,051.75, 414,077.87 and 86,526.93 is: 129,790.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,051.75 : 414,077.87 = 86,526.93 : x
  2. Step 2: Convert to fraction form
    276,051.75/414,077.87 = 86,526.93/x
  3. Step 3: Cross multiply
    276,051.75x = 414,077.87 × 86,526.93
  4. Step 4: Simplify right side
    276,051.75x = 35,828,888,641.15
  5. Step 5: Solve for x
    x = 35,828,888,641.15/276,051.75
  6. Step 6: Final answer
    x = 129,790.48

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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.