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Finding the Fourth Proportional to 55,934.40, 83,903.40 and 20,877.60

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Solution

The fourth proportional to 55,934.40, 83,903.40 and 20,877.60 is: 31,317.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,934.40 : 83,903.40 = 20,877.60 : x
  2. Step 2: Convert to fraction form
    55,934.40/83,903.40 = 20,877.60/x
  3. Step 3: Cross multiply
    55,934.40x = 83,903.40 × 20,877.60
  4. Step 4: Simplify right side
    55,934.40x = 1,751,701,623.84
  5. Step 5: Solve for x
    x = 1,751,701,623.84/55,934.40
  6. Step 6: Final answer
    x = 31,317.07

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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.