Home / 52,788.53-72,849.12-28,913.68

Finding the Fourth Proportional to 52,788.53, 72,849.12 and 28,913.68

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Solution

The fourth proportional to 52,788.53, 72,849.12 and 28,913.68 is: 39,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,788.53 : 72,849.12 = 28,913.68 : x
  2. Step 2: Convert to fraction form
    52,788.53/72,849.12 = 28,913.68/x
  3. Step 3: Cross multiply
    52,788.53x = 72,849.12 × 28,913.68
  4. Step 4: Simplify right side
    52,788.53x = 2,106,335,879.46
  5. Step 5: Solve for x
    x = 2,106,335,879.46/52,788.53
  6. Step 6: Final answer
    x = 39,901.40

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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.