Home / 88,390.26-121,994.37-56,558.07

Finding the Fourth Proportional to 88,390.26, 121,994.37 and 56,558.07

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Solution

The fourth proportional to 88,390.26, 121,994.37 and 56,558.07 is: 78,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,390.26 : 121,994.37 = 56,558.07 : x
  2. Step 2: Convert to fraction form
    88,390.26/121,994.37 = 56,558.07/x
  3. Step 3: Cross multiply
    88,390.26x = 121,994.37 × 56,558.07
  4. Step 4: Simplify right side
    88,390.26x = 6,899,766,118.07
  5. Step 5: Solve for x
    x = 6,899,766,118.07/88,390.26
  6. Step 6: Final answer
    x = 78,060.25

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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.