Home / 81,635.12-112,661.50-54,364.44

Finding the Fourth Proportional to 81,635.12, 112,661.50 and 54,364.44

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Solution

The fourth proportional to 81,635.12, 112,661.50 and 54,364.44 is: 75,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,635.12 : 112,661.50 = 54,364.44 : x
  2. Step 2: Convert to fraction form
    81,635.12/112,661.50 = 54,364.44/x
  3. Step 3: Cross multiply
    81,635.12x = 112,661.50 × 54,364.44
  4. Step 4: Simplify right side
    81,635.12x = 6,124,779,357.06
  5. Step 5: Solve for x
    x = 6,124,779,357.06/81,635.12
  6. Step 6: Final answer
    x = 75,026.28

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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.