Home / 87,928.47-131,409.98-64,285.79

Finding the Fourth Proportional to 87,928.47, 131,409.98 and 64,285.79

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Solution

The fourth proportional to 87,928.47, 131,409.98 and 64,285.79 is: 96,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,928.47 : 131,409.98 = 64,285.79 : x
  2. Step 2: Convert to fraction form
    87,928.47/131,409.98 = 64,285.79/x
  3. Step 3: Cross multiply
    87,928.47x = 131,409.98 × 64,285.79
  4. Step 4: Simplify right side
    87,928.47x = 8,447,793,640.78
  5. Step 5: Solve for x
    x = 8,447,793,640.78/87,928.47
  6. Step 6: Final answer
    x = 96,075.75

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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.