Home / 74,285.85-111,429.02-18,881.85

Finding the Fourth Proportional to 74,285.85, 111,429.02 and 18,881.85

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Solution

The fourth proportional to 74,285.85, 111,429.02 and 18,881.85 is: 28,322.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,285.85 : 111,429.02 = 18,881.85 : x
  2. Step 2: Convert to fraction form
    74,285.85/111,429.02 = 18,881.85/x
  3. Step 3: Cross multiply
    74,285.85x = 111,429.02 × 18,881.85
  4. Step 4: Simplify right side
    74,285.85x = 2,103,986,041.29
  5. Step 5: Solve for x
    x = 2,103,986,041.29/74,285.85
  6. Step 6: Final answer
    x = 28,322.84

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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.