Home / 91,702.14-126,571.48-55,911.90

Finding the Fourth Proportional to 91,702.14, 126,571.48 and 55,911.90

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Solution

The fourth proportional to 91,702.14, 126,571.48 and 55,911.90 is: 77,172.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,702.14 : 126,571.48 = 55,911.90 : x
  2. Step 2: Convert to fraction form
    91,702.14/126,571.48 = 55,911.90/x
  3. Step 3: Cross multiply
    91,702.14x = 126,571.48 × 55,911.90
  4. Step 4: Simplify right side
    91,702.14x = 7,076,851,932.61
  5. Step 5: Solve for x
    x = 7,076,851,932.61/91,702.14
  6. Step 6: Final answer
    x = 77,172.16

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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.