Home / 52,641.90-72,645.44-28,768.05

Finding the Fourth Proportional to 52,641.90, 72,645.44 and 28,768.05

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Solution

The fourth proportional to 52,641.90, 72,645.44 and 28,768.05 is: 39,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,641.90 : 72,645.44 = 28,768.05 : x
  2. Step 2: Convert to fraction form
    52,641.90/72,645.44 = 28,768.05/x
  3. Step 3: Cross multiply
    52,641.90x = 72,645.44 × 28,768.05
  4. Step 4: Simplify right side
    52,641.90x = 2,089,867,506.35
  5. Step 5: Solve for x
    x = 2,089,867,506.35/52,641.90
  6. Step 6: Final answer
    x = 39,699.70

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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.