Home / 55,084.45-76,016.35-31,215.67

Finding the Fourth Proportional to 55,084.45, 76,016.35 and 31,215.67

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Solution

The fourth proportional to 55,084.45, 76,016.35 and 31,215.67 is: 43,077.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,084.45 : 76,016.35 = 31,215.67 : x
  2. Step 2: Convert to fraction form
    55,084.45/76,016.35 = 31,215.67/x
  3. Step 3: Cross multiply
    55,084.45x = 76,016.35 × 31,215.67
  4. Step 4: Simplify right side
    55,084.45x = 2,372,901,430.24
  5. Step 5: Solve for x
    x = 2,372,901,430.24/55,084.45
  6. Step 6: Final answer
    x = 43,077.52

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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.