Home / 49,980.72-74,971.38-14,920.68

Finding the Fourth Proportional to 49,980.72, 74,971.38 and 14,920.68

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Solution

The fourth proportional to 49,980.72, 74,971.38 and 14,920.68 is: 22,381.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,980.72 : 74,971.38 = 14,920.68 : x
  2. Step 2: Convert to fraction form
    49,980.72/74,971.38 = 14,920.68/x
  3. Step 3: Cross multiply
    49,980.72x = 74,971.38 × 14,920.68
  4. Step 4: Simplify right side
    49,980.72x = 1,118,623,970.14
  5. Step 5: Solve for x
    x = 1,118,623,970.14/49,980.72
  6. Step 6: Final answer
    x = 22,381.11

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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.