Home / 85,776.40-118,371.44-48,050.65

Finding the Fourth Proportional to 85,776.40, 118,371.44 and 48,050.65

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Solution

The fourth proportional to 85,776.40, 118,371.44 and 48,050.65 is: 66,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,776.40 : 118,371.44 = 48,050.65 : x
  2. Step 2: Convert to fraction form
    85,776.40/118,371.44 = 48,050.65/x
  3. Step 3: Cross multiply
    85,776.40x = 118,371.44 × 48,050.65
  4. Step 4: Simplify right side
    85,776.40x = 5,687,824,457.63
  5. Step 5: Solve for x
    x = 5,687,824,457.63/85,776.40
  6. Step 6: Final answer
    x = 66,309.90

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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.