Home / 51,035.92-70,428.16-28,374.32

Finding the Fourth Proportional to 51,035.92, 70,428.16 and 28,374.32

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Solution

The fourth proportional to 51,035.92, 70,428.16 and 28,374.32 is: 39,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,035.92 : 70,428.16 = 28,374.32 : x
  2. Step 2: Convert to fraction form
    51,035.92/70,428.16 = 28,374.32/x
  3. Step 3: Cross multiply
    51,035.92x = 70,428.16 × 28,374.32
  4. Step 4: Simplify right side
    51,035.92x = 1,998,351,148.85
  5. Step 5: Solve for x
    x = 1,998,351,148.85/51,035.92
  6. Step 6: Final answer
    x = 39,155.78

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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.