Home / 86,103.96-118,826.10-52,118.70

Finding the Fourth Proportional to 86,103.96, 118,826.10 and 52,118.70

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Solution

The fourth proportional to 86,103.96, 118,826.10 and 52,118.70 is: 71,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,103.96 : 118,826.10 = 52,118.70 : x
  2. Step 2: Convert to fraction form
    86,103.96/118,826.10 = 52,118.70/x
  3. Step 3: Cross multiply
    86,103.96x = 118,826.10 × 52,118.70
  4. Step 4: Simplify right side
    86,103.96x = 6,193,061,858.07
  5. Step 5: Solve for x
    x = 6,193,061,858.07/86,103.96
  6. Step 6: Final answer
    x = 71,925.40

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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.