Home / 50,421.80-75,632.70-13,485.80

Finding the Fourth Proportional to 50,421.80, 75,632.70 and 13,485.80

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Solution

The fourth proportional to 50,421.80, 75,632.70 and 13,485.80 is: 20,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,421.80 : 75,632.70 = 13,485.80 : x
  2. Step 2: Convert to fraction form
    50,421.80/75,632.70 = 13,485.80/x
  3. Step 3: Cross multiply
    50,421.80x = 75,632.70 × 13,485.80
  4. Step 4: Simplify right side
    50,421.80x = 1,019,967,465.66
  5. Step 5: Solve for x
    x = 1,019,967,465.66/50,421.80
  6. Step 6: Final answer
    x = 20,228.70

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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.