Home / 85,508.26-128,290.06-41,129.24

Finding the Fourth Proportional to 85,508.26, 128,290.06 and 41,129.24

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Solution

The fourth proportional to 85,508.26, 128,290.06 and 41,129.24 is: 61,707.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,508.26 : 128,290.06 = 41,129.24 : x
  2. Step 2: Convert to fraction form
    85,508.26/128,290.06 = 41,129.24/x
  3. Step 3: Cross multiply
    85,508.26x = 128,290.06 × 41,129.24
  4. Step 4: Simplify right side
    85,508.26x = 5,276,472,077.32
  5. Step 5: Solve for x
    x = 5,276,472,077.32/85,508.26
  6. Step 6: Final answer
    x = 61,707.16

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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.