Home / 56,386.81-77,816.33-31,234.69

Finding the Fourth Proportional to 56,386.81, 77,816.33 and 31,234.69

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Solution

The fourth proportional to 56,386.81, 77,816.33 and 31,234.69 is: 43,105.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,386.81 : 77,816.33 = 31,234.69 : x
  2. Step 2: Convert to fraction form
    56,386.81/77,816.33 = 31,234.69/x
  3. Step 3: Cross multiply
    56,386.81x = 77,816.33 × 31,234.69
  4. Step 4: Simplify right side
    56,386.81x = 2,430,568,944.49
  5. Step 5: Solve for x
    x = 2,430,568,944.49/56,386.81
  6. Step 6: Final answer
    x = 43,105.27

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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.