Home / 87,474.99-130,529.96-78,050.19

Finding the Fourth Proportional to 87,474.99, 130,529.96 and 78,050.19

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Solution

The fourth proportional to 87,474.99, 130,529.96 and 78,050.19 is: 116,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,474.99 : 130,529.96 = 78,050.19 : x
  2. Step 2: Convert to fraction form
    87,474.99/130,529.96 = 78,050.19/x
  3. Step 3: Cross multiply
    87,474.99x = 130,529.96 × 78,050.19
  4. Step 4: Simplify right side
    87,474.99x = 10,187,888,178.69
  5. Step 5: Solve for x
    x = 10,187,888,178.69/87,474.99
  6. Step 6: Final answer
    x = 116,466.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.