Home / 90,820.21-125,359.73-58,554.87

Finding the Fourth Proportional to 90,820.21, 125,359.73 and 58,554.87

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Solution

The fourth proportional to 90,820.21, 125,359.73 and 58,554.87 is: 80,823.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,820.21 : 125,359.73 = 58,554.87 : x
  2. Step 2: Convert to fraction form
    90,820.21/125,359.73 = 58,554.87/x
  3. Step 3: Cross multiply
    90,820.21x = 125,359.73 × 58,554.87
  4. Step 4: Simplify right side
    90,820.21x = 7,340,422,620.19
  5. Step 5: Solve for x
    x = 7,340,422,620.19/90,820.21
  6. Step 6: Final answer
    x = 80,823.67

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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.