Home / 86,554.84-129,490.62-65,555.39

Finding the Fourth Proportional to 86,554.84, 129,490.62 and 65,555.39

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Solution

The fourth proportional to 86,554.84, 129,490.62 and 65,555.39 is: 98,074.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,554.84 : 129,490.62 = 65,555.39 : x
  2. Step 2: Convert to fraction form
    86,554.84/129,490.62 = 65,555.39/x
  3. Step 3: Cross multiply
    86,554.84x = 129,490.62 × 65,555.39
  4. Step 4: Simplify right side
    86,554.84x = 8,488,808,095.44
  5. Step 5: Solve for x
    x = 8,488,808,095.44/86,554.84
  6. Step 6: Final answer
    x = 98,074.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.