Home / 90,948-125,503.36-50,110.86

Finding the Fourth Proportional to 90,948, 125,503.36 and 50,110.86

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Solution

The fourth proportional to 90,948, 125,503.36 and 50,110.86 is: 69,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,948 : 125,503.36 = 50,110.86 : x
  2. Step 2: Convert to fraction form
    90,948/125,503.36 = 50,110.86/x
  3. Step 3: Cross multiply
    90,948x = 125,503.36 × 50,110.86
  4. Step 4: Simplify right side
    90,948x = 6,289,081,302.49
  5. Step 5: Solve for x
    x = 6,289,081,302.49/90,948
  6. Step 6: Final answer
    x = 69,150.30

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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.