Home / 90,243.06-124,538.34-51,999.67

Finding the Fourth Proportional to 90,243.06, 124,538.34 and 51,999.67

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Solution

The fourth proportional to 90,243.06, 124,538.34 and 51,999.67 is: 71,761.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,243.06 : 124,538.34 = 51,999.67 : x
  2. Step 2: Convert to fraction form
    90,243.06/124,538.34 = 51,999.67/x
  3. Step 3: Cross multiply
    90,243.06x = 124,538.34 × 51,999.67
  4. Step 4: Simplify right side
    90,243.06x = 6,475,952,466.00
  5. Step 5: Solve for x
    x = 6,475,952,466.00/90,243.06
  6. Step 6: Final answer
    x = 71,761.23

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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.