Home / 90,735.18-125,214.44-50,447.67

Finding the Fourth Proportional to 90,735.18, 125,214.44 and 50,447.67

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Solution

The fourth proportional to 90,735.18, 125,214.44 and 50,447.67 is: 69,617.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,735.18 : 125,214.44 = 50,447.67 : x
  2. Step 2: Convert to fraction form
    90,735.18/125,214.44 = 50,447.67/x
  3. Step 3: Cross multiply
    90,735.18x = 125,214.44 × 50,447.67
  4. Step 4: Simplify right side
    90,735.18x = 6,316,776,496.12
  5. Step 5: Solve for x
    x = 6,316,776,496.12/90,735.18
  6. Step 6: Final answer
    x = 69,617.72

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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.