Home / 91,015.02-136,584.03-31,851.21

Finding the Fourth Proportional to 91,015.02, 136,584.03 and 31,851.21

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Solution

The fourth proportional to 91,015.02, 136,584.03 and 31,851.21 is: 47,798.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,015.02 : 136,584.03 = 31,851.21 : x
  2. Step 2: Convert to fraction form
    91,015.02/136,584.03 = 31,851.21/x
  3. Step 3: Cross multiply
    91,015.02x = 136,584.03 × 31,851.21
  4. Step 4: Simplify right side
    91,015.02x = 4,350,366,622.18
  5. Step 5: Solve for x
    x = 4,350,366,622.18/91,015.02
  6. Step 6: Final answer
    x = 47,798.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.