Home / 76,824.16-115,930.07-74,457.48

Finding the Fourth Proportional to 76,824.16, 115,930.07 and 74,457.48

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Solution

The fourth proportional to 76,824.16, 115,930.07 and 74,457.48 is: 112,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,824.16 : 115,930.07 = 74,457.48 : x
  2. Step 2: Convert to fraction form
    76,824.16/115,930.07 = 74,457.48/x
  3. Step 3: Cross multiply
    76,824.16x = 115,930.07 × 74,457.48
  4. Step 4: Simplify right side
    76,824.16x = 8,631,860,868.42
  5. Step 5: Solve for x
    x = 8,631,860,868.42/76,824.16
  6. Step 6: Final answer
    x = 112,358.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.