Home / 85,823.10-128,717.04-32,496.68

Finding the Fourth Proportional to 85,823.10, 128,717.04 and 32,496.68

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Solution

The fourth proportional to 85,823.10, 128,717.04 and 32,496.68 is: 48,738.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,823.10 : 128,717.04 = 32,496.68 : x
  2. Step 2: Convert to fraction form
    85,823.10/128,717.04 = 32,496.68/x
  3. Step 3: Cross multiply
    85,823.10x = 128,717.04 × 32,496.68
  4. Step 4: Simplify right side
    85,823.10x = 4,182,876,459.43
  5. Step 5: Solve for x
    x = 4,182,876,459.43/85,823.10
  6. Step 6: Final answer
    x = 48,738.35

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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.