Home / 66,007.12-99,017.60-18,621.84

Finding the Fourth Proportional to 66,007.12, 99,017.60 and 18,621.84

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Solution

The fourth proportional to 66,007.12, 99,017.60 and 18,621.84 is: 27,934.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,007.12 : 99,017.60 = 18,621.84 : x
  2. Step 2: Convert to fraction form
    66,007.12/99,017.60 = 18,621.84/x
  3. Step 3: Cross multiply
    66,007.12x = 99,017.60 × 18,621.84
  4. Step 4: Simplify right side
    66,007.12x = 1,843,889,904.38
  5. Step 5: Solve for x
    x = 1,843,889,904.38/66,007.12
  6. Step 6: Final answer
    x = 27,934.71

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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.