Home / 81,944.64-122,914.08-25,783.20

Finding the Fourth Proportional to 81,944.64, 122,914.08 and 25,783.20

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Solution

The fourth proportional to 81,944.64, 122,914.08 and 25,783.20 is: 38,673.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,944.64 : 122,914.08 = 25,783.20 : x
  2. Step 2: Convert to fraction form
    81,944.64/122,914.08 = 25,783.20/x
  3. Step 3: Cross multiply
    81,944.64x = 122,914.08 × 25,783.20
  4. Step 4: Simplify right side
    81,944.64x = 3,169,118,307.46
  5. Step 5: Solve for x
    x = 3,169,118,307.46/81,944.64
  6. Step 6: Final answer
    x = 38,673.89

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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.