Home / 74,188.85-102,427.34-51,520.59

Finding the Fourth Proportional to 74,188.85, 102,427.34 and 51,520.59

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Solution

The fourth proportional to 74,188.85, 102,427.34 and 51,520.59 is: 71,130.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,188.85 : 102,427.34 = 51,520.59 : x
  2. Step 2: Convert to fraction form
    74,188.85/102,427.34 = 51,520.59/x
  3. Step 3: Cross multiply
    74,188.85x = 102,427.34 × 51,520.59
  4. Step 4: Simplify right side
    74,188.85x = 5,277,116,731.33
  5. Step 5: Solve for x
    x = 5,277,116,731.33/74,188.85
  6. Step 6: Final answer
    x = 71,130.87

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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.