Home / 55,300.89-76,315.05-30,150.39

Finding the Fourth Proportional to 55,300.89, 76,315.05 and 30,150.39

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Solution

The fourth proportional to 55,300.89, 76,315.05 and 30,150.39 is: 41,607.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,300.89 : 76,315.05 = 30,150.39 : x
  2. Step 2: Convert to fraction form
    55,300.89/76,315.05 = 30,150.39/x
  3. Step 3: Cross multiply
    55,300.89x = 76,315.05 × 30,150.39
  4. Step 4: Simplify right side
    55,300.89x = 2,300,928,520.37
  5. Step 5: Solve for x
    x = 2,300,928,520.37/55,300.89
  6. Step 6: Final answer
    x = 41,607.44

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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.