Home / 72,024.20-99,378.56-41,391.39

Finding the Fourth Proportional to 72,024.20, 99,378.56 and 41,391.39

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Solution

The fourth proportional to 72,024.20, 99,378.56 and 41,391.39 is: 57,111.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,024.20 : 99,378.56 = 41,391.39 : x
  2. Step 2: Convert to fraction form
    72,024.20/99,378.56 = 41,391.39/x
  3. Step 3: Cross multiply
    72,024.20x = 99,378.56 × 41,391.39
  4. Step 4: Simplify right side
    72,024.20x = 4,113,416,527.64
  5. Step 5: Solve for x
    x = 4,113,416,527.64/72,024.20
  6. Step 6: Final answer
    x = 57,111.59

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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.