Home / 72,941.45-100,667.18-42,321.26

Finding the Fourth Proportional to 72,941.45, 100,667.18 and 42,321.26

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Solution

The fourth proportional to 72,941.45, 100,667.18 and 42,321.26 is: 58,407.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,941.45 : 100,667.18 = 42,321.26 : x
  2. Step 2: Convert to fraction form
    72,941.45/100,667.18 = 42,321.26/x
  3. Step 3: Cross multiply
    72,941.45x = 100,667.18 × 42,321.26
  4. Step 4: Simplify right side
    72,941.45x = 4,260,362,255.72
  5. Step 5: Solve for x
    x = 4,260,362,255.72/72,941.45
  6. Step 6: Final answer
    x = 58,407.98

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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.