Home / 85,831.56-128,782.89-46,342.26

Finding the Fourth Proportional to 85,831.56, 128,782.89 and 46,342.26

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Solution

The fourth proportional to 85,831.56, 128,782.89 and 46,342.26 is: 69,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,831.56 : 128,782.89 = 46,342.26 : x
  2. Step 2: Convert to fraction form
    85,831.56/128,782.89 = 46,342.26/x
  3. Step 3: Cross multiply
    85,831.56x = 128,782.89 × 46,342.26
  4. Step 4: Simplify right side
    85,831.56x = 5,968,090,171.93
  5. Step 5: Solve for x
    x = 5,968,090,171.93/85,831.56
  6. Step 6: Final answer
    x = 69,532.58

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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.