Home / 49,402.28-74,050.32-21,335.60

Finding the Fourth Proportional to 49,402.28, 74,050.32 and 21,335.60

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Solution

The fourth proportional to 49,402.28, 74,050.32 and 21,335.60 is: 31,980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,402.28 : 74,050.32 = 21,335.60 : x
  2. Step 2: Convert to fraction form
    49,402.28/74,050.32 = 21,335.60/x
  3. Step 3: Cross multiply
    49,402.28x = 74,050.32 × 21,335.60
  4. Step 4: Simplify right side
    49,402.28x = 1,579,908,007.39
  5. Step 5: Solve for x
    x = 1,579,908,007.39/49,402.28
  6. Step 6: Final answer
    x = 31,980.47

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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.