Home / 49,876.08-74,827.08-18,720.24

Finding the Fourth Proportional to 49,876.08, 74,827.08 and 18,720.24

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Solution

The fourth proportional to 49,876.08, 74,827.08 and 18,720.24 is: 28,085.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,876.08 : 74,827.08 = 18,720.24 : x
  2. Step 2: Convert to fraction form
    49,876.08/74,827.08 = 18,720.24/x
  3. Step 3: Cross multiply
    49,876.08x = 74,827.08 × 18,720.24
  4. Step 4: Simplify right side
    49,876.08x = 1,400,780,896.10
  5. Step 5: Solve for x
    x = 1,400,780,896.10/49,876.08
  6. Step 6: Final answer
    x = 28,085.22

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1.5x scale

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.