Home / 50,911.90-70,258.26-28,254.32

Finding the Fourth Proportional to 50,911.90, 70,258.26 and 28,254.32

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Solution

The fourth proportional to 50,911.90, 70,258.26 and 28,254.32 is: 38,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,911.90 : 70,258.26 = 28,254.32 : x
  2. Step 2: Convert to fraction form
    50,911.90/70,258.26 = 28,254.32/x
  3. Step 3: Cross multiply
    50,911.90x = 70,258.26 × 28,254.32
  4. Step 4: Simplify right side
    50,911.90x = 1,985,099,360.68
  5. Step 5: Solve for x
    x = 1,985,099,360.68/50,911.90
  6. Step 6: Final answer
    x = 38,990.87

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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.