Home / 85,799.07-128,622.47-32,453.80

Finding the Fourth Proportional to 85,799.07, 128,622.47 and 32,453.80

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Solution

The fourth proportional to 85,799.07, 128,622.47 and 32,453.80 is: 48,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,799.07 : 128,622.47 = 32,453.80 : x
  2. Step 2: Convert to fraction form
    85,799.07/128,622.47 = 32,453.80/x
  3. Step 3: Cross multiply
    85,799.07x = 128,622.47 × 32,453.80
  4. Step 4: Simplify right side
    85,799.07x = 4,174,287,433.06
  5. Step 5: Solve for x
    x = 4,174,287,433.06/85,799.07
  6. Step 6: Final answer
    x = 48,651.90

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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.