Home / 49,381.08-74,058.40-13,840.40

Finding the Fourth Proportional to 49,381.08, 74,058.40 and 13,840.40

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Solution

The fourth proportional to 49,381.08, 74,058.40 and 13,840.40 is: 20,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,381.08 : 74,058.40 = 13,840.40 : x
  2. Step 2: Convert to fraction form
    49,381.08/74,058.40 = 13,840.40/x
  3. Step 3: Cross multiply
    49,381.08x = 74,058.40 × 13,840.40
  4. Step 4: Simplify right side
    49,381.08x = 1,024,998,081.81
  5. Step 5: Solve for x
    x = 1,024,998,081.81/49,381.08
  6. Step 6: Final answer
    x = 20,756.90

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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.