Home / 86,688.42-119,628.45-48,448.68

Finding the Fourth Proportional to 86,688.42, 119,628.45 and 48,448.68

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Solution

The fourth proportional to 86,688.42, 119,628.45 and 48,448.68 is: 66,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,688.42 : 119,628.45 = 48,448.68 : x
  2. Step 2: Convert to fraction form
    86,688.42/119,628.45 = 48,448.68/x
  3. Step 3: Cross multiply
    86,688.42x = 119,628.45 × 48,448.68
  4. Step 4: Simplify right side
    86,688.42x = 5,795,840,492.95
  5. Step 5: Solve for x
    x = 5,795,840,492.95/86,688.42
  6. Step 6: Final answer
    x = 66,858.30

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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.