Home / 50,810.12-70,120.48-30,666.68

Finding the Fourth Proportional to 50,810.12, 70,120.48 and 30,666.68

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Solution

The fourth proportional to 50,810.12, 70,120.48 and 30,666.68 is: 42,321.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,810.12 : 70,120.48 = 30,666.68 : x
  2. Step 2: Convert to fraction form
    50,810.12/70,120.48 = 30,666.68/x
  3. Step 3: Cross multiply
    50,810.12x = 70,120.48 × 30,666.68
  4. Step 4: Simplify right side
    50,810.12x = 2,150,362,321.61
  5. Step 5: Solve for x
    x = 2,150,362,321.61/50,810.12
  6. Step 6: Final answer
    x = 42,321.54

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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.