Home / 86,621.38-129,983.90-37,373.38

Finding the Fourth Proportional to 86,621.38, 129,983.90 and 37,373.38

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Solution

The fourth proportional to 86,621.38, 129,983.90 and 37,373.38 is: 56,082.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,621.38 : 129,983.90 = 37,373.38 : x
  2. Step 2: Convert to fraction form
    86,621.38/129,983.90 = 37,373.38/x
  3. Step 3: Cross multiply
    86,621.38x = 129,983.90 × 37,373.38
  4. Step 4: Simplify right side
    86,621.38x = 4,857,937,688.58
  5. Step 5: Solve for x
    x = 4,857,937,688.58/86,621.38
  6. Step 6: Final answer
    x = 56,082.43

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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.