Home / 85,821.45-118,437.66-53,575.17

Finding the Fourth Proportional to 85,821.45, 118,437.66 and 53,575.17

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Solution

The fourth proportional to 85,821.45, 118,437.66 and 53,575.17 is: 73,936.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,821.45 : 118,437.66 = 53,575.17 : x
  2. Step 2: Convert to fraction form
    85,821.45/118,437.66 = 53,575.17/x
  3. Step 3: Cross multiply
    85,821.45x = 118,437.66 × 53,575.17
  4. Step 4: Simplify right side
    85,821.45x = 6,345,317,768.90
  5. Step 5: Solve for x
    x = 6,345,317,768.90/85,821.45
  6. Step 6: Final answer
    x = 73,936.27

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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.