Home / 87,559.14-120,831.51-51,762.06

Finding the Fourth Proportional to 87,559.14, 120,831.51 and 51,762.06

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Solution

The fourth proportional to 87,559.14, 120,831.51 and 51,762.06 is: 71,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,559.14 : 120,831.51 = 51,762.06 : x
  2. Step 2: Convert to fraction form
    87,559.14/120,831.51 = 51,762.06/x
  3. Step 3: Cross multiply
    87,559.14x = 120,831.51 × 51,762.06
  4. Step 4: Simplify right side
    87,559.14x = 6,254,487,870.51
  5. Step 5: Solve for x
    x = 6,254,487,870.51/87,559.14
  6. Step 6: Final answer
    x = 71,431.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.