Home / 49,981.95-74,971.08-12,542.31

Finding the Fourth Proportional to 49,981.95, 74,971.08 and 12,542.31

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Solution

The fourth proportional to 49,981.95, 74,971.08 and 12,542.31 is: 18,813.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,981.95 : 74,971.08 = 12,542.31 : x
  2. Step 2: Convert to fraction form
    49,981.95/74,971.08 = 12,542.31/x
  3. Step 3: Cross multiply
    49,981.95x = 74,971.08 × 12,542.31
  4. Step 4: Simplify right side
    49,981.95x = 940,310,526.39
  5. Step 5: Solve for x
    x = 940,310,526.39/49,981.95
  6. Step 6: Final answer
    x = 18,813.00

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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.