Home / 91,985.22-126,989.98-55,693.17

Finding the Fourth Proportional to 91,985.22, 126,989.98 and 55,693.17

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Solution

The fourth proportional to 91,985.22, 126,989.98 and 55,693.17 is: 76,887.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,985.22 : 126,989.98 = 55,693.17 : x
  2. Step 2: Convert to fraction form
    91,985.22/126,989.98 = 55,693.17/x
  3. Step 3: Cross multiply
    91,985.22x = 126,989.98 × 55,693.17
  4. Step 4: Simplify right side
    91,985.22x = 7,072,474,405.20
  5. Step 5: Solve for x
    x = 7,072,474,405.20/91,985.22
  6. Step 6: Final answer
    x = 76,887.07

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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.