Home / 40,122.64-55,368.87-23,120.64

Finding the Fourth Proportional to 40,122.64, 55,368.87 and 23,120.64

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Solution

The fourth proportional to 40,122.64, 55,368.87 and 23,120.64 is: 31,906.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.64 : 55,368.87 = 23,120.64 : x
  2. Step 2: Convert to fraction form
    40,122.64/55,368.87 = 23,120.64/x
  3. Step 3: Cross multiply
    40,122.64x = 55,368.87 × 23,120.64
  4. Step 4: Simplify right side
    40,122.64x = 1,280,163,623.77
  5. Step 5: Solve for x
    x = 1,280,163,623.77/40,122.64
  6. Step 6: Final answer
    x = 31,906.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.