Home / 86,572.20-129,916.64-33,975.48

Finding the Fourth Proportional to 86,572.20, 129,916.64 and 33,975.48

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Solution

The fourth proportional to 86,572.20, 129,916.64 and 33,975.48 is: 50,986.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,572.20 : 129,916.64 = 33,975.48 : x
  2. Step 2: Convert to fraction form
    86,572.20/129,916.64 = 33,975.48/x
  3. Step 3: Cross multiply
    86,572.20x = 129,916.64 × 33,975.48
  4. Step 4: Simplify right side
    86,572.20x = 4,413,980,203.99
  5. Step 5: Solve for x
    x = 4,413,980,203.99/86,572.20
  6. Step 6: Final answer
    x = 50,986.12

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1.5x scale

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.