Home / 55,247.40-76,238.76-31,370.92

Finding the Fourth Proportional to 55,247.40, 76,238.76 and 31,370.92

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Solution

The fourth proportional to 55,247.40, 76,238.76 and 31,370.92 is: 43,290.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,247.40 : 76,238.76 = 31,370.92 : x
  2. Step 2: Convert to fraction form
    55,247.40/76,238.76 = 31,370.92/x
  3. Step 3: Cross multiply
    55,247.40x = 76,238.76 × 31,370.92
  4. Step 4: Simplify right side
    55,247.40x = 2,391,680,040.86
  5. Step 5: Solve for x
    x = 2,391,680,040.86/55,247.40
  6. Step 6: Final answer
    x = 43,290.36

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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.