Home / 86,323.20-119,144.40-58,012.49

Finding the Fourth Proportional to 86,323.20, 119,144.40 and 58,012.49

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Solution

The fourth proportional to 86,323.20, 119,144.40 and 58,012.49 is: 80,069.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,323.20 : 119,144.40 = 58,012.49 : x
  2. Step 2: Convert to fraction form
    86,323.20/119,144.40 = 58,012.49/x
  3. Step 3: Cross multiply
    86,323.20x = 119,144.40 × 58,012.49
  4. Step 4: Simplify right side
    86,323.20x = 6,911,862,717.83
  5. Step 5: Solve for x
    x = 6,911,862,717.83/86,323.20
  6. Step 6: Final answer
    x = 80,069.58

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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.