Home / 85,819.95-118,435.59-53,573.67

Finding the Fourth Proportional to 85,819.95, 118,435.59 and 53,573.67

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Solution

The fourth proportional to 85,819.95, 118,435.59 and 53,573.67 is: 73,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,819.95 : 118,435.59 = 53,573.67 : x
  2. Step 2: Convert to fraction form
    85,819.95/118,435.59 = 53,573.67/x
  3. Step 3: Cross multiply
    85,819.95x = 118,435.59 × 53,573.67
  4. Step 4: Simplify right side
    85,819.95x = 6,345,029,214.92
  5. Step 5: Solve for x
    x = 6,345,029,214.92/85,819.95
  6. Step 6: Final answer
    x = 73,934.20

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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.