Home / 51,157.14-70,598.78-28,187.92

Finding the Fourth Proportional to 51,157.14, 70,598.78 and 28,187.92

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Solution

The fourth proportional to 51,157.14, 70,598.78 and 28,187.92 is: 38,900.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,157.14 : 70,598.78 = 28,187.92 : x
  2. Step 2: Convert to fraction form
    51,157.14/70,598.78 = 28,187.92/x
  3. Step 3: Cross multiply
    51,157.14x = 70,598.78 × 28,187.92
  4. Step 4: Simplify right side
    51,157.14x = 1,990,032,762.74
  5. Step 5: Solve for x
    x = 1,990,032,762.74/51,157.14
  6. Step 6: Final answer
    x = 38,900.39

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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.