Home / 86,637.06-119,555.79-54,389.10

Finding the Fourth Proportional to 86,637.06, 119,555.79 and 54,389.10

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Solution

The fourth proportional to 86,637.06, 119,555.79 and 54,389.10 is: 75,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,637.06 : 119,555.79 = 54,389.10 : x
  2. Step 2: Convert to fraction form
    86,637.06/119,555.79 = 54,389.10/x
  3. Step 3: Cross multiply
    86,637.06x = 119,555.79 × 54,389.10
  4. Step 4: Simplify right side
    86,637.06x = 6,502,531,817.89
  5. Step 5: Solve for x
    x = 6,502,531,817.89/86,637.06
  6. Step 6: Final answer
    x = 75,054.85

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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.