Home / 49,783.89-74,689.67-21,706.40

Finding the Fourth Proportional to 49,783.89, 74,689.67 and 21,706.40

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Solution

The fourth proportional to 49,783.89, 74,689.67 and 21,706.40 is: 32,565.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,783.89 : 74,689.67 = 21,706.40 : x
  2. Step 2: Convert to fraction form
    49,783.89/74,689.67 = 21,706.40/x
  3. Step 3: Cross multiply
    49,783.89x = 74,689.67 × 21,706.40
  4. Step 4: Simplify right side
    49,783.89x = 1,621,243,533.71
  5. Step 5: Solve for x
    x = 1,621,243,533.71/49,783.89
  6. Step 6: Final answer
    x = 32,565.63

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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.