Home / 86,453.19-129,714.35-31,053.51

Finding the Fourth Proportional to 86,453.19, 129,714.35 and 31,053.51

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Solution

The fourth proportional to 86,453.19, 129,714.35 and 31,053.51 is: 46,592.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,453.19 : 129,714.35 = 31,053.51 : x
  2. Step 2: Convert to fraction form
    86,453.19/129,714.35 = 31,053.51/x
  3. Step 3: Cross multiply
    86,453.19x = 129,714.35 × 31,053.51
  4. Step 4: Simplify right side
    86,453.19x = 4,028,085,709.60
  5. Step 5: Solve for x
    x = 4,028,085,709.60/86,453.19
  6. Step 6: Final answer
    x = 46,592.68

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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.