Home / 55,390.36-76,443.06-31,518.04

Finding the Fourth Proportional to 55,390.36, 76,443.06 and 31,518.04

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Solution

The fourth proportional to 55,390.36, 76,443.06 and 31,518.04 is: 43,497.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,390.36 : 76,443.06 = 31,518.04 : x
  2. Step 2: Convert to fraction form
    55,390.36/76,443.06 = 31,518.04/x
  3. Step 3: Cross multiply
    55,390.36x = 76,443.06 × 31,518.04
  4. Step 4: Simplify right side
    55,390.36x = 2,409,335,422.80
  5. Step 5: Solve for x
    x = 2,409,335,422.80/55,390.36
  6. Step 6: Final answer
    x = 43,497.38

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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.