Home / 74,666.40-111,998.16-18,506.63

Finding the Fourth Proportional to 74,666.40, 111,998.16 and 18,506.63

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Solution

The fourth proportional to 74,666.40, 111,998.16 and 18,506.63 is: 27,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,666.40 : 111,998.16 = 18,506.63 : x
  2. Step 2: Convert to fraction form
    74,666.40/111,998.16 = 18,506.63/x
  3. Step 3: Cross multiply
    74,666.40x = 111,998.16 × 18,506.63
  4. Step 4: Simplify right side
    74,666.40x = 2,072,707,947.81
  5. Step 5: Solve for x
    x = 2,072,707,947.81/74,666.40
  6. Step 6: Final answer
    x = 27,759.58

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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.