Home / 51,038.48-70,435.43-28,379.77

Finding the Fourth Proportional to 51,038.48, 70,435.43 and 28,379.77

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Solution

The fourth proportional to 51,038.48, 70,435.43 and 28,379.77 is: 39,165.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,038.48 : 70,435.43 = 28,379.77 : x
  2. Step 2: Convert to fraction form
    51,038.48/70,435.43 = 28,379.77/x
  3. Step 3: Cross multiply
    51,038.48x = 70,435.43 × 28,379.77
  4. Step 4: Simplify right side
    51,038.48x = 1,998,941,303.25
  5. Step 5: Solve for x
    x = 1,998,941,303.25/51,038.48
  6. Step 6: Final answer
    x = 39,165.38

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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.