Home / 86,429.36-119,230.11-57,756.06

Finding the Fourth Proportional to 86,429.36, 119,230.11 and 57,756.06

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Solution

The fourth proportional to 86,429.36, 119,230.11 and 57,756.06 is: 79,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,429.36 : 119,230.11 = 57,756.06 : x
  2. Step 2: Convert to fraction form
    86,429.36/119,230.11 = 57,756.06/x
  3. Step 3: Cross multiply
    86,429.36x = 119,230.11 × 57,756.06
  4. Step 4: Simplify right side
    86,429.36x = 6,886,261,603.55
  5. Step 5: Solve for x
    x = 6,886,261,603.55/86,429.36
  6. Step 6: Final answer
    x = 79,675.03

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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.