Home / 55,868.22-77,087.12-31,339.85

Finding the Fourth Proportional to 55,868.22, 77,087.12 and 31,339.85

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Solution

The fourth proportional to 55,868.22, 77,087.12 and 31,339.85 is: 43,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,868.22 : 77,087.12 = 31,339.85 : x
  2. Step 2: Convert to fraction form
    55,868.22/77,087.12 = 31,339.85/x
  3. Step 3: Cross multiply
    55,868.22x = 77,087.12 × 31,339.85
  4. Step 4: Simplify right side
    55,868.22x = 2,415,898,235.60
  5. Step 5: Solve for x
    x = 2,415,898,235.60/55,868.22
  6. Step 6: Final answer
    x = 43,242.80

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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.