Home / 91,108.44-125,729.78-52,875.45

Finding the Fourth Proportional to 91,108.44, 125,729.78 and 52,875.45

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Solution

The fourth proportional to 91,108.44, 125,729.78 and 52,875.45 is: 72,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,108.44 : 125,729.78 = 52,875.45 : x
  2. Step 2: Convert to fraction form
    91,108.44/125,729.78 = 52,875.45/x
  3. Step 3: Cross multiply
    91,108.44x = 125,729.78 × 52,875.45
  4. Step 4: Simplify right side
    91,108.44x = 6,648,018,431.52
  5. Step 5: Solve for x
    x = 6,648,018,431.52/91,108.44
  6. Step 6: Final answer
    x = 72,968.20

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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.