Home / 81,085.14-111,892.70-45,277.40

Finding the Fourth Proportional to 81,085.14, 111,892.70 and 45,277.40

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Solution

The fourth proportional to 81,085.14, 111,892.70 and 45,277.40 is: 62,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,085.14 : 111,892.70 = 45,277.40 : x
  2. Step 2: Convert to fraction form
    81,085.14/111,892.70 = 45,277.40/x
  3. Step 3: Cross multiply
    81,085.14x = 111,892.70 × 45,277.40
  4. Step 4: Simplify right side
    81,085.14x = 5,066,209,749.13
  5. Step 5: Solve for x
    x = 5,066,209,749.13/81,085.14
  6. Step 6: Final answer
    x = 62,480.13

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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.