Home / 55,220.60-76,205.34-31,347.98

Finding the Fourth Proportional to 55,220.60, 76,205.34 and 31,347.98

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Solution

The fourth proportional to 55,220.60, 76,205.34 and 31,347.98 is: 43,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,220.60 : 76,205.34 = 31,347.98 : x
  2. Step 2: Convert to fraction form
    55,220.60/76,205.34 = 31,347.98/x
  3. Step 3: Cross multiply
    55,220.60x = 76,205.34 × 31,347.98
  4. Step 4: Simplify right side
    55,220.60x = 2,388,883,474.21
  5. Step 5: Solve for x
    x = 2,388,883,474.21/55,220.60
  6. Step 6: Final answer
    x = 43,260.73

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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.