Home / 52,435.95-78,636.60-20,853.84

Finding the Fourth Proportional to 52,435.95, 78,636.60 and 20,853.84

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Solution

The fourth proportional to 52,435.95, 78,636.60 and 20,853.84 is: 31,273.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,435.95 : 78,636.60 = 20,853.84 : x
  2. Step 2: Convert to fraction form
    52,435.95/78,636.60 = 20,853.84/x
  3. Step 3: Cross multiply
    52,435.95x = 78,636.60 × 20,853.84
  4. Step 4: Simplify right side
    52,435.95x = 1,639,875,074.54
  5. Step 5: Solve for x
    x = 1,639,875,074.54/52,435.95
  6. Step 6: Final answer
    x = 31,273.87

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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.