Home / 83,381.99-115,085.01-53,160.35

Finding the Fourth Proportional to 83,381.99, 115,085.01 and 53,160.35

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Solution

The fourth proportional to 83,381.99, 115,085.01 and 53,160.35 is: 73,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,381.99 : 115,085.01 = 53,160.35 : x
  2. Step 2: Convert to fraction form
    83,381.99/115,085.01 = 53,160.35/x
  3. Step 3: Cross multiply
    83,381.99x = 115,085.01 × 53,160.35
  4. Step 4: Simplify right side
    83,381.99x = 6,117,958,835.93
  5. Step 5: Solve for x
    x = 6,117,958,835.93/83,381.99
  6. Step 6: Final answer
    x = 73,372.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.