Home / 85,364.30-128,066.67-29,205.02

Finding the Fourth Proportional to 85,364.30, 128,066.67 and 29,205.02

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Solution

The fourth proportional to 85,364.30, 128,066.67 and 29,205.02 is: 43,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,364.30 : 128,066.67 = 29,205.02 : x
  2. Step 2: Convert to fraction form
    85,364.30/128,066.67 = 29,205.02/x
  3. Step 3: Cross multiply
    85,364.30x = 128,066.67 × 29,205.02
  4. Step 4: Simplify right side
    85,364.30x = 3,740,189,658.68
  5. Step 5: Solve for x
    x = 3,740,189,658.68/85,364.30
  6. Step 6: Final answer
    x = 43,814.45

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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.