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Finding the Fourth Proportional to 82,855.50, 114,341.04 and 45,129.84

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Solution

The fourth proportional to 82,855.50, 114,341.04 and 45,129.84 is: 62,279.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,855.50 : 114,341.04 = 45,129.84 : x
  2. Step 2: Convert to fraction form
    82,855.50/114,341.04 = 45,129.84/x
  3. Step 3: Cross multiply
    82,855.50x = 114,341.04 × 45,129.84
  4. Step 4: Simplify right side
    82,855.50x = 5,160,192,840.63
  5. Step 5: Solve for x
    x = 5,160,192,840.63/82,855.50
  6. Step 6: Final answer
    x = 62,279.42

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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.