Home / 89,879.21-124,011.18-54,945.07

Finding the Fourth Proportional to 89,879.21, 124,011.18 and 54,945.07

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Solution

The fourth proportional to 89,879.21, 124,011.18 and 54,945.07 is: 75,810.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,879.21 : 124,011.18 = 54,945.07 : x
  2. Step 2: Convert to fraction form
    89,879.21/124,011.18 = 54,945.07/x
  3. Step 3: Cross multiply
    89,879.21x = 124,011.18 × 54,945.07
  4. Step 4: Simplify right side
    89,879.21x = 6,813,802,965.88
  5. Step 5: Solve for x
    x = 6,813,802,965.88/89,879.21
  6. Step 6: Final answer
    x = 75,810.67

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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.