Home / 85,530.74-118,030.57-47,288.81

Finding the Fourth Proportional to 85,530.74, 118,030.57 and 47,288.81

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Solution

The fourth proportional to 85,530.74, 118,030.57 and 47,288.81 is: 65,257.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,530.74 : 118,030.57 = 47,288.81 : x
  2. Step 2: Convert to fraction form
    85,530.74/118,030.57 = 47,288.81/x
  3. Step 3: Cross multiply
    85,530.74x = 118,030.57 × 47,288.81
  4. Step 4: Simplify right side
    85,530.74x = 5,581,525,375.78
  5. Step 5: Solve for x
    x = 5,581,525,375.78/85,530.74
  6. Step 6: Final answer
    x = 65,257.54

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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.