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Finding the Fourth Proportional to 52,155.60, 71,974.09 and 28,281.99

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Solution

The fourth proportional to 52,155.60, 71,974.09 and 28,281.99 is: 39,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,155.60 : 71,974.09 = 28,281.99 : x
  2. Step 2: Convert to fraction form
    52,155.60/71,974.09 = 28,281.99/x
  3. Step 3: Cross multiply
    52,155.60x = 71,974.09 × 28,281.99
  4. Step 4: Simplify right side
    52,155.60x = 2,035,570,271.16
  5. Step 5: Solve for x
    x = 2,035,570,271.16/52,155.60
  6. Step 6: Final answer
    x = 39,028.80

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1.5x scale

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.