Home / 88,106.42-121,587.74-47,820.51

Finding the Fourth Proportional to 88,106.42, 121,587.74 and 47,820.51

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Solution

The fourth proportional to 88,106.42, 121,587.74 and 47,820.51 is: 65,992.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,106.42 : 121,587.74 = 47,820.51 : x
  2. Step 2: Convert to fraction form
    88,106.42/121,587.74 = 47,820.51/x
  3. Step 3: Cross multiply
    88,106.42x = 121,587.74 × 47,820.51
  4. Step 4: Simplify right side
    88,106.42x = 5,814,387,497.44
  5. Step 5: Solve for x
    x = 5,814,387,497.44/88,106.42
  6. Step 6: Final answer
    x = 65,992.78

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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.