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Finding the Fourth Proportional to 71,953.35, 107,930.03 and 54,457.35

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Solution

The fourth proportional to 71,953.35, 107,930.03 and 54,457.35 is: 81,686.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,953.35 : 107,930.03 = 54,457.35 : x
  2. Step 2: Convert to fraction form
    71,953.35/107,930.03 = 54,457.35/x
  3. Step 3: Cross multiply
    71,953.35x = 107,930.03 × 54,457.35
  4. Step 4: Simplify right side
    71,953.35x = 5,877,583,146.93
  5. Step 5: Solve for x
    x = 5,877,583,146.93/71,953.35
  6. Step 6: Final answer
    x = 81,686.03

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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.