Home / 80,538.21-111,145.28-48,262.19

Finding the Fourth Proportional to 80,538.21, 111,145.28 and 48,262.19

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Solution

The fourth proportional to 80,538.21, 111,145.28 and 48,262.19 is: 66,603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,538.21 : 111,145.28 = 48,262.19 : x
  2. Step 2: Convert to fraction form
    80,538.21/111,145.28 = 48,262.19/x
  3. Step 3: Cross multiply
    80,538.21x = 111,145.28 × 48,262.19
  4. Step 4: Simplify right side
    80,538.21x = 5,364,114,657.52
  5. Step 5: Solve for x
    x = 5,364,114,657.52/80,538.21
  6. Step 6: Final answer
    x = 66,603.35

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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.