Home / 83,842.02-115,749.81-55,585.98

Finding the Fourth Proportional to 83,842.02, 115,749.81 and 55,585.98

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Solution

The fourth proportional to 83,842.02, 115,749.81 and 55,585.98 is: 76,740.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,842.02 : 115,749.81 = 55,585.98 : x
  2. Step 2: Convert to fraction form
    83,842.02/115,749.81 = 55,585.98/x
  3. Step 3: Cross multiply
    83,842.02x = 115,749.81 × 55,585.98
  4. Step 4: Simplify right side
    83,842.02x = 6,434,066,623.66
  5. Step 5: Solve for x
    x = 6,434,066,623.66/83,842.02
  6. Step 6: Final answer
    x = 76,740.36

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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.