Home / 57,890.34-86,834.55-18,446.91

Finding the Fourth Proportional to 57,890.34, 86,834.55 and 18,446.91

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Solution

The fourth proportional to 57,890.34, 86,834.55 and 18,446.91 is: 27,670.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,890.34 : 86,834.55 = 18,446.91 : x
  2. Step 2: Convert to fraction form
    57,890.34/86,834.55 = 18,446.91/x
  3. Step 3: Cross multiply
    57,890.34x = 86,834.55 × 18,446.91
  4. Step 4: Simplify right side
    57,890.34x = 1,601,829,128.74
  5. Step 5: Solve for x
    x = 1,601,829,128.74/57,890.34
  6. Step 6: Final answer
    x = 27,670.06

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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.