Home / 50,761.96-70,051.64-28,101.60

Finding the Fourth Proportional to 50,761.96, 70,051.64 and 28,101.60

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Solution

The fourth proportional to 50,761.96, 70,051.64 and 28,101.60 is: 38,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,761.96 : 70,051.64 = 28,101.60 : x
  2. Step 2: Convert to fraction form
    50,761.96/70,051.64 = 28,101.60/x
  3. Step 3: Cross multiply
    50,761.96x = 70,051.64 × 28,101.60
  4. Step 4: Simplify right side
    50,761.96x = 1,968,563,026.12
  5. Step 5: Solve for x
    x = 1,968,563,026.12/50,761.96
  6. Step 6: Final answer
    x = 38,780.28

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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.