Home / 86,077.08-128,998.86-41,615.28

Finding the Fourth Proportional to 86,077.08, 128,998.86 and 41,615.28

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Solution

The fourth proportional to 86,077.08, 128,998.86 and 41,615.28 is: 62,366.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,077.08 : 128,998.86 = 41,615.28 : x
  2. Step 2: Convert to fraction form
    86,077.08/128,998.86 = 41,615.28/x
  3. Step 3: Cross multiply
    86,077.08x = 128,998.86 × 41,615.28
  4. Step 4: Simplify right side
    86,077.08x = 5,368,323,678.58
  5. Step 5: Solve for x
    x = 5,368,323,678.58/86,077.08
  6. Step 6: Final answer
    x = 62,366.47

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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.