Home / 85,723.34-128,548.94-32,406.35

Finding the Fourth Proportional to 85,723.34, 128,548.94 and 32,406.35

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Solution

The fourth proportional to 85,723.34, 128,548.94 and 32,406.35 is: 48,595.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,723.34 : 128,548.94 = 32,406.35 : x
  2. Step 2: Convert to fraction form
    85,723.34/128,548.94 = 32,406.35/x
  3. Step 3: Cross multiply
    85,723.34x = 128,548.94 × 32,406.35
  4. Step 4: Simplify right side
    85,723.34x = 4,165,801,136.99
  5. Step 5: Solve for x
    x = 4,165,801,136.99/85,723.34
  6. Step 6: Final answer
    x = 48,595.88

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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.