Home / 51,120.38-70,537.77-28,458.81

Finding the Fourth Proportional to 51,120.38, 70,537.77 and 28,458.81

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Solution

The fourth proportional to 51,120.38, 70,537.77 and 28,458.81 is: 39,268.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,120.38 : 70,537.77 = 28,458.81 : x
  2. Step 2: Convert to fraction form
    51,120.38/70,537.77 = 28,458.81/x
  3. Step 3: Cross multiply
    51,120.38x = 70,537.77 × 28,458.81
  4. Step 4: Simplify right side
    51,120.38x = 2,007,420,994.25
  5. Step 5: Solve for x
    x = 2,007,420,994.25/51,120.38
  6. Step 6: Final answer
    x = 39,268.50

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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.