Home / 51,038.21-70,435.07-28,379.53

Finding the Fourth Proportional to 51,038.21, 70,435.07 and 28,379.53

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Solution

The fourth proportional to 51,038.21, 70,435.07 and 28,379.53 is: 39,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,038.21 : 70,435.07 = 28,379.53 : x
  2. Step 2: Convert to fraction form
    51,038.21/70,435.07 = 28,379.53/x
  3. Step 3: Cross multiply
    51,038.21x = 70,435.07 × 28,379.53
  4. Step 4: Simplify right side
    51,038.21x = 1,998,914,182.12
  5. Step 5: Solve for x
    x = 1,998,914,182.12/51,038.21
  6. Step 6: Final answer
    x = 39,165.05

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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.