Home / 86,628.96-129,935.07-58,728.42

Finding the Fourth Proportional to 86,628.96, 129,935.07 and 58,728.42

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Solution

The fourth proportional to 86,628.96, 129,935.07 and 58,728.42 is: 88,086.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,628.96 : 129,935.07 = 58,728.42 : x
  2. Step 2: Convert to fraction form
    86,628.96/129,935.07 = 58,728.42/x
  3. Step 3: Cross multiply
    86,628.96x = 129,935.07 × 58,728.42
  4. Step 4: Simplify right side
    86,628.96x = 7,630,881,363.69
  5. Step 5: Solve for x
    x = 7,630,881,363.69/86,628.96
  6. Step 6: Final answer
    x = 88,086.96

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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.