Home / 85,715.44-118,273.16-53,861.76

Finding the Fourth Proportional to 85,715.44, 118,273.16 and 53,861.76

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Solution

The fourth proportional to 85,715.44, 118,273.16 and 53,861.76 is: 74,320.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,715.44 : 118,273.16 = 53,861.76 : x
  2. Step 2: Convert to fraction form
    85,715.44/118,273.16 = 53,861.76/x
  3. Step 3: Cross multiply
    85,715.44x = 118,273.16 × 53,861.76
  4. Step 4: Simplify right side
    85,715.44x = 6,370,400,558.36
  5. Step 5: Solve for x
    x = 6,370,400,558.36/85,715.44
  6. Step 6: Final answer
    x = 74,320.34

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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.