Home / 86,103.70-129,349.98-51,066.34

Finding the Fourth Proportional to 86,103.70, 129,349.98 and 51,066.34

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Solution

The fourth proportional to 86,103.70, 129,349.98 and 51,066.34 is: 76,714.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,103.70 : 129,349.98 = 51,066.34 : x
  2. Step 2: Convert to fraction form
    86,103.70/129,349.98 = 51,066.34/x
  3. Step 3: Cross multiply
    86,103.70x = 129,349.98 × 51,066.34
  4. Step 4: Simplify right side
    86,103.70x = 6,605,430,057.67
  5. Step 5: Solve for x
    x = 6,605,430,057.67/86,103.70
  6. Step 6: Final answer
    x = 76,714.82

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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.