Home / 50,128.80-75,212.40-49,341.60

Finding the Fourth Proportional to 50,128.80, 75,212.40 and 49,341.60

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Solution

The fourth proportional to 50,128.80, 75,212.40 and 49,341.60 is: 74,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,128.80 : 75,212.40 = 49,341.60 : x
  2. Step 2: Convert to fraction form
    50,128.80/75,212.40 = 49,341.60/x
  3. Step 3: Cross multiply
    50,128.80x = 75,212.40 × 49,341.60
  4. Step 4: Simplify right side
    50,128.80x = 3,711,100,155.84
  5. Step 5: Solve for x
    x = 3,711,100,155.84/50,128.80
  6. Step 6: Final answer
    x = 74,031.30

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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.