Home / 81,146.24-111,968.76-45,334.40

Finding the Fourth Proportional to 81,146.24, 111,968.76 and 45,334.40

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Solution

The fourth proportional to 81,146.24, 111,968.76 and 45,334.40 is: 62,554.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,146.24 : 111,968.76 = 45,334.40 : x
  2. Step 2: Convert to fraction form
    81,146.24/111,968.76 = 45,334.40/x
  3. Step 3: Cross multiply
    81,146.24x = 111,968.76 × 45,334.40
  4. Step 4: Simplify right side
    81,146.24x = 5,076,036,553.34
  5. Step 5: Solve for x
    x = 5,076,036,553.34/81,146.24
  6. Step 6: Final answer
    x = 62,554.18

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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.