Home / 75,435.40-113,153.10-40,443.40

Finding the Fourth Proportional to 75,435.40, 113,153.10 and 40,443.40

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Solution

The fourth proportional to 75,435.40, 113,153.10 and 40,443.40 is: 60,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,435.40 : 113,153.10 = 40,443.40 : x
  2. Step 2: Convert to fraction form
    75,435.40/113,153.10 = 40,443.40/x
  3. Step 3: Cross multiply
    75,435.40x = 113,153.10 × 40,443.40
  4. Step 4: Simplify right side
    75,435.40x = 4,576,296,084.54
  5. Step 5: Solve for x
    x = 4,576,296,084.54/75,435.40
  6. Step 6: Final answer
    x = 60,665.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.