Home / 84,943.58-127,420.23-25,781.18

Finding the Fourth Proportional to 84,943.58, 127,420.23 and 25,781.18

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Solution

The fourth proportional to 84,943.58, 127,420.23 and 25,781.18 is: 38,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,943.58 : 127,420.23 = 25,781.18 : x
  2. Step 2: Convert to fraction form
    84,943.58/127,420.23 = 25,781.18/x
  3. Step 3: Cross multiply
    84,943.58x = 127,420.23 × 25,781.18
  4. Step 4: Simplify right side
    84,943.58x = 3,285,043,885.27
  5. Step 5: Solve for x
    x = 3,285,043,885.27/84,943.58
  6. Step 6: Final answer
    x = 38,673.25

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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.