Home / 77,745.34-107,303.26-48,687.21

Finding the Fourth Proportional to 77,745.34, 107,303.26 and 48,687.21

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Solution

The fourth proportional to 77,745.34, 107,303.26 and 48,687.21 is: 67,197.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,745.34 : 107,303.26 = 48,687.21 : x
  2. Step 2: Convert to fraction form
    77,745.34/107,303.26 = 48,687.21/x
  3. Step 3: Cross multiply
    77,745.34x = 107,303.26 × 48,687.21
  4. Step 4: Simplify right side
    77,745.34x = 5,224,296,638.63
  5. Step 5: Solve for x
    x = 5,224,296,638.63/77,745.34
  6. Step 6: Final answer
    x = 67,197.55

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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.