Home / 52,779.60-72,836.21-28,907.28

Finding the Fourth Proportional to 52,779.60, 72,836.21 and 28,907.28

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Solution

The fourth proportional to 52,779.60, 72,836.21 and 28,907.28 is: 39,892.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,779.60 : 72,836.21 = 28,907.28 : x
  2. Step 2: Convert to fraction form
    52,779.60/72,836.21 = 28,907.28/x
  3. Step 3: Cross multiply
    52,779.60x = 72,836.21 × 28,907.28
  4. Step 4: Simplify right side
    52,779.60x = 2,105,496,788.88
  5. Step 5: Solve for x
    x = 2,105,496,788.88/52,779.60
  6. Step 6: Final answer
    x = 39,892.25

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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.