Home / 86,159.04-129,018.24-51,123.84

Finding the Fourth Proportional to 86,159.04, 129,018.24 and 51,123.84

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Solution

The fourth proportional to 86,159.04, 129,018.24 and 51,123.84 is: 76,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,159.04 : 129,018.24 = 51,123.84 : x
  2. Step 2: Convert to fraction form
    86,159.04/129,018.24 = 51,123.84/x
  3. Step 3: Cross multiply
    86,159.04x = 129,018.24 × 51,123.84
  4. Step 4: Simplify right side
    86,159.04x = 6,595,907,858.84
  5. Step 5: Solve for x
    x = 6,595,907,858.84/86,159.04
  6. Step 6: Final answer
    x = 76,555.03

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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.