Home / 53,731-74,148.78-36,993.16

Finding the Fourth Proportional to 53,731, 74,148.78 and 36,993.16

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Solution

The fourth proportional to 53,731, 74,148.78 and 36,993.16 is: 51,050.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,731 : 74,148.78 = 36,993.16 : x
  2. Step 2: Convert to fraction form
    53,731/74,148.78 = 36,993.16/x
  3. Step 3: Cross multiply
    53,731x = 74,148.78 × 36,993.16
  4. Step 4: Simplify right side
    53,731x = 2,742,997,682.34
  5. Step 5: Solve for x
    x = 2,742,997,682.34/53,731
  6. Step 6: Final answer
    x = 51,050.56

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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.