Home / 84,050.06-126,071.44-20,868.69

Finding the Fourth Proportional to 84,050.06, 126,071.44 and 20,868.69

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Solution

The fourth proportional to 84,050.06, 126,071.44 and 20,868.69 is: 31,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,050.06 : 126,071.44 = 20,868.69 : x
  2. Step 2: Convert to fraction form
    84,050.06/126,071.44 = 20,868.69/x
  3. Step 3: Cross multiply
    84,050.06x = 126,071.44 × 20,868.69
  4. Step 4: Simplify right side
    84,050.06x = 2,630,945,510.66
  5. Step 5: Solve for x
    x = 2,630,945,510.66/84,050.06
  6. Step 6: Final answer
    x = 31,302.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.