Home / 86,841.12-119,802.70-51,014.97

Finding the Fourth Proportional to 86,841.12, 119,802.70 and 51,014.97

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Solution

The fourth proportional to 86,841.12, 119,802.70 and 51,014.97 is: 70,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,841.12 : 119,802.70 = 51,014.97 : x
  2. Step 2: Convert to fraction form
    86,841.12/119,802.70 = 51,014.97/x
  3. Step 3: Cross multiply
    86,841.12x = 119,802.70 × 51,014.97
  4. Step 4: Simplify right side
    86,841.12x = 6,111,731,018.88
  5. Step 5: Solve for x
    x = 6,111,731,018.88/86,841.12
  6. Step 6: Final answer
    x = 70,378.31

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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.