Home / 72,980.11-100,695.38-44,299.07

Finding the Fourth Proportional to 72,980.11, 100,695.38 and 44,299.07

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Solution

The fourth proportional to 72,980.11, 100,695.38 and 44,299.07 is: 61,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,980.11 : 100,695.38 = 44,299.07 : x
  2. Step 2: Convert to fraction form
    72,980.11/100,695.38 = 44,299.07/x
  3. Step 3: Cross multiply
    72,980.11x = 100,695.38 × 44,299.07
  4. Step 4: Simplify right side
    72,980.11x = 4,460,711,324.81
  5. Step 5: Solve for x
    x = 4,460,711,324.81/72,980.11
  6. Step 6: Final answer
    x = 61,122.29

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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.