Home / 85,807.22-128,716.59-23,478.26

Finding the Fourth Proportional to 85,807.22, 128,716.59 and 23,478.26

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Solution

The fourth proportional to 85,807.22, 128,716.59 and 23,478.26 is: 35,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,807.22 : 128,716.59 = 23,478.26 : x
  2. Step 2: Convert to fraction form
    85,807.22/128,716.59 = 23,478.26/x
  3. Step 3: Cross multiply
    85,807.22x = 128,716.59 × 23,478.26
  4. Step 4: Simplify right side
    85,807.22x = 3,022,041,566.33
  5. Step 5: Solve for x
    x = 3,022,041,566.33/85,807.22
  6. Step 6: Final answer
    x = 35,218.97

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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.