Home / 77,715.55-116,005.96-66,693.07

Finding the Fourth Proportional to 77,715.55, 116,005.96 and 66,693.07

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Solution

The fourth proportional to 77,715.55, 116,005.96 and 66,693.07 is: 99,552.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,715.55 : 116,005.96 = 66,693.07 : x
  2. Step 2: Convert to fraction form
    77,715.55/116,005.96 = 66,693.07/x
  3. Step 3: Cross multiply
    77,715.55x = 116,005.96 × 66,693.07
  4. Step 4: Simplify right side
    77,715.55x = 7,736,793,610.70
  5. Step 5: Solve for x
    x = 7,736,793,610.70/77,715.55
  6. Step 6: Final answer
    x = 99,552.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.