Home / 85,812.63-118,397.43-67,606.83

Finding the Fourth Proportional to 85,812.63, 118,397.43 and 67,606.83

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Solution

The fourth proportional to 85,812.63, 118,397.43 and 67,606.83 is: 93,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,812.63 : 118,397.43 = 67,606.83 : x
  2. Step 2: Convert to fraction form
    85,812.63/118,397.43 = 67,606.83/x
  3. Step 3: Cross multiply
    85,812.63x = 118,397.43 × 67,606.83
  4. Step 4: Simplify right side
    85,812.63x = 8,004,475,409.99
  5. Step 5: Solve for x
    x = 8,004,475,409.99/85,812.63
  6. Step 6: Final answer
    x = 93,278.53

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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.