Home / 85,586.53-118,109.64-47,860.78

Finding the Fourth Proportional to 85,586.53, 118,109.64 and 47,860.78

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Solution

The fourth proportional to 85,586.53, 118,109.64 and 47,860.78 is: 66,048.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,586.53 : 118,109.64 = 47,860.78 : x
  2. Step 2: Convert to fraction form
    85,586.53/118,109.64 = 47,860.78/x
  3. Step 3: Cross multiply
    85,586.53x = 118,109.64 × 47,860.78
  4. Step 4: Simplify right side
    85,586.53x = 5,652,819,495.92
  5. Step 5: Solve for x
    x = 5,652,819,495.92/85,586.53
  6. Step 6: Final answer
    x = 66,048.00

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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.