Home / 90,903.89-136,315.73-48,771.33

Finding the Fourth Proportional to 90,903.89, 136,315.73 and 48,771.33

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Solution

The fourth proportional to 90,903.89, 136,315.73 and 48,771.33 is: 73,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,903.89 : 136,315.73 = 48,771.33 : x
  2. Step 2: Convert to fraction form
    90,903.89/136,315.73 = 48,771.33/x
  3. Step 3: Cross multiply
    90,903.89x = 136,315.73 × 48,771.33
  4. Step 4: Simplify right side
    90,903.89x = 6,648,299,208.16
  5. Step 5: Solve for x
    x = 6,648,299,208.16/90,903.89
  6. Step 6: Final answer
    x = 73,135.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.