Home / 85,819.34-118,428.54-51,856.04

Finding the Fourth Proportional to 85,819.34, 118,428.54 and 51,856.04

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Solution

The fourth proportional to 85,819.34, 118,428.54 and 51,856.04 is: 71,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,819.34 : 118,428.54 = 51,856.04 : x
  2. Step 2: Convert to fraction form
    85,819.34/118,428.54 = 51,856.04/x
  3. Step 3: Cross multiply
    85,819.34x = 118,428.54 × 51,856.04
  4. Step 4: Simplify right side
    85,819.34x = 6,141,235,107.38
  5. Step 5: Solve for x
    x = 6,141,235,107.38/85,819.34
  6. Step 6: Final answer
    x = 71,560.04

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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.