Home / 74,403.43-111,602.81-18,243.70

Finding the Fourth Proportional to 74,403.43, 111,602.81 and 18,243.70

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Solution

The fourth proportional to 74,403.43, 111,602.81 and 18,243.70 is: 27,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,403.43 : 111,602.81 = 18,243.70 : x
  2. Step 2: Convert to fraction form
    74,403.43/111,602.81 = 18,243.70/x
  3. Step 3: Cross multiply
    74,403.43x = 111,602.81 × 18,243.70
  4. Step 4: Simplify right side
    74,403.43x = 2,036,047,951.40
  5. Step 5: Solve for x
    x = 2,036,047,951.40/74,403.43
  6. Step 6: Final answer
    x = 27,364.98

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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.