Home / 85,841.25-128,783.75-32,555.00

Finding the Fourth Proportional to 85,841.25, 128,783.75 and 32,555.00

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Solution

The fourth proportional to 85,841.25, 128,783.75 and 32,555.00 is: 48,840.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,841.25 : 128,783.75 = 32,555.00 : x
  2. Step 2: Convert to fraction form
    85,841.25/128,783.75 = 32,555.00/x
  3. Step 3: Cross multiply
    85,841.25x = 128,783.75 × 32,555.00
  4. Step 4: Simplify right side
    85,841.25x = 4,192,554,174.56
  5. Step 5: Solve for x
    x = 4,192,554,174.56/85,841.25
  6. Step 6: Final answer
    x = 48,840.79

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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.