Home / 55,313.74-76,314.72-31,431.70

Finding the Fourth Proportional to 55,313.74, 76,314.72 and 31,431.70

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Solution

The fourth proportional to 55,313.74, 76,314.72 and 31,431.70 is: 43,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,313.74 : 76,314.72 = 31,431.70 : x
  2. Step 2: Convert to fraction form
    55,313.74/76,314.72 = 31,431.70/x
  3. Step 3: Cross multiply
    55,313.74x = 76,314.72 × 31,431.70
  4. Step 4: Simplify right side
    55,313.74x = 2,398,701,384.62
  5. Step 5: Solve for x
    x = 2,398,701,384.62/55,313.74
  6. Step 6: Final answer
    x = 43,365.38

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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.