Home / 52,788.21-72,847.76-28,915.28

Finding the Fourth Proportional to 52,788.21, 72,847.76 and 28,915.28

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Solution

The fourth proportional to 52,788.21, 72,847.76 and 28,915.28 is: 39,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,788.21 : 72,847.76 = 28,915.28 : x
  2. Step 2: Convert to fraction form
    52,788.21/72,847.76 = 28,915.28/x
  3. Step 3: Cross multiply
    52,788.21x = 72,847.76 × 28,915.28
  4. Step 4: Simplify right side
    52,788.21x = 2,106,413,377.77
  5. Step 5: Solve for x
    x = 2,106,413,377.77/52,788.21
  6. Step 6: Final answer
    x = 39,903.10

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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.