Home / 73,485.13-109,728.61-71,492.23

Finding the Fourth Proportional to 73,485.13, 109,728.61 and 71,492.23

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Solution

The fourth proportional to 73,485.13, 109,728.61 and 71,492.23 is: 106,752.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,485.13 : 109,728.61 = 71,492.23 : x
  2. Step 2: Convert to fraction form
    73,485.13/109,728.61 = 71,492.23/x
  3. Step 3: Cross multiply
    73,485.13x = 109,728.61 × 71,492.23
  4. Step 4: Simplify right side
    73,485.13x = 7,844,742,844.97
  5. Step 5: Solve for x
    x = 7,844,742,844.97/73,485.13
  6. Step 6: Final answer
    x = 106,752.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.