Home / 66,009.04-99,019.39-18,624.55

Finding the Fourth Proportional to 66,009.04, 99,019.39 and 18,624.55

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Solution

The fourth proportional to 66,009.04, 99,019.39 and 18,624.55 is: 27,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,009.04 : 99,019.39 = 18,624.55 : x
  2. Step 2: Convert to fraction form
    66,009.04/99,019.39 = 18,624.55/x
  3. Step 3: Cross multiply
    66,009.04x = 99,019.39 × 18,624.55
  4. Step 4: Simplify right side
    66,009.04x = 1,844,191,506.50
  5. Step 5: Solve for x
    x = 1,844,191,506.50/66,009.04
  6. Step 6: Final answer
    x = 27,938.47

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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.