Home / 81,013.26-111,803.85-45,210.18

Finding the Fourth Proportional to 81,013.26, 111,803.85 and 45,210.18

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Solution

The fourth proportional to 81,013.26, 111,803.85 and 45,210.18 is: 62,393.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,013.26 : 111,803.85 = 45,210.18 : x
  2. Step 2: Convert to fraction form
    81,013.26/111,803.85 = 45,210.18/x
  3. Step 3: Cross multiply
    81,013.26x = 111,803.85 × 45,210.18
  4. Step 4: Simplify right side
    81,013.26x = 5,054,672,183.19
  5. Step 5: Solve for x
    x = 5,054,672,183.19/81,013.26
  6. Step 6: Final answer
    x = 62,393.15

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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.