Home / 81,335.15-112,221.21-46,871.45

Finding the Fourth Proportional to 81,335.15, 112,221.21 and 46,871.45

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Solution

The fourth proportional to 81,335.15, 112,221.21 and 46,871.45 is: 64,670.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,335.15 : 112,221.21 = 46,871.45 : x
  2. Step 2: Convert to fraction form
    81,335.15/112,221.21 = 46,871.45/x
  3. Step 3: Cross multiply
    81,335.15x = 112,221.21 × 46,871.45
  4. Step 4: Simplify right side
    81,335.15x = 5,259,970,272.35
  5. Step 5: Solve for x
    x = 5,259,970,272.35/81,335.15
  6. Step 6: Final answer
    x = 64,670.33

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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.