Home / 76,011.16-104,925-68,039.60

Finding the Fourth Proportional to 76,011.16, 104,925 and 68,039.60

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Solution

The fourth proportional to 76,011.16, 104,925 and 68,039.60 is: 93,921.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,011.16 : 104,925 = 68,039.60 : x
  2. Step 2: Convert to fraction form
    76,011.16/104,925 = 68,039.60/x
  3. Step 3: Cross multiply
    76,011.16x = 104,925 × 68,039.60
  4. Step 4: Simplify right side
    76,011.16x = 7,139,055,030.00
  5. Step 5: Solve for x
    x = 7,139,055,030.00/76,011.16
  6. Step 6: Final answer
    x = 93,921.14

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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.