Home / 49,869.81-74,804.71-21,400.59

Finding the Fourth Proportional to 49,869.81, 74,804.71 and 21,400.59

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Solution

The fourth proportional to 49,869.81, 74,804.71 and 21,400.59 is: 32,100.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,869.81 : 74,804.71 = 21,400.59 : x
  2. Step 2: Convert to fraction form
    49,869.81/74,804.71 = 21,400.59/x
  3. Step 3: Cross multiply
    49,869.81x = 74,804.71 × 21,400.59
  4. Step 4: Simplify right side
    49,869.81x = 1,600,865,143.39
  5. Step 5: Solve for x
    x = 1,600,865,143.39/49,869.81
  6. Step 6: Final answer
    x = 32,100.89

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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.