Home / 51,037.20-70,435.28-30,620.03

Finding the Fourth Proportional to 51,037.20, 70,435.28 and 30,620.03

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Solution

The fourth proportional to 51,037.20, 70,435.28 and 30,620.03 is: 42,258.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,037.20 : 70,435.28 = 30,620.03 : x
  2. Step 2: Convert to fraction form
    51,037.20/70,435.28 = 30,620.03/x
  3. Step 3: Cross multiply
    51,037.20x = 70,435.28 × 30,620.03
  4. Step 4: Simplify right side
    51,037.20x = 2,156,730,386.66
  5. Step 5: Solve for x
    x = 2,156,730,386.66/51,037.20
  6. Step 6: Final answer
    x = 42,258.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.