Home / 51,268.08-76,907.61-21,688.92

Finding the Fourth Proportional to 51,268.08, 76,907.61 and 21,688.92

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Solution

The fourth proportional to 51,268.08, 76,907.61 and 21,688.92 is: 32,535.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,268.08 : 76,907.61 = 21,688.92 : x
  2. Step 2: Convert to fraction form
    51,268.08/76,907.61 = 21,688.92/x
  3. Step 3: Cross multiply
    51,268.08x = 76,907.61 × 21,688.92
  4. Step 4: Simplify right side
    51,268.08x = 1,668,043,000.68
  5. Step 5: Solve for x
    x = 1,668,043,000.68/51,268.08
  6. Step 6: Final answer
    x = 32,535.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.