Home / 91,015.04-136,584.06-31,851.22

Finding the Fourth Proportional to 91,015.04, 136,584.06 and 31,851.22

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Solution

The fourth proportional to 91,015.04, 136,584.06 and 31,851.22 is: 47,798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,015.04 : 136,584.06 = 31,851.22 : x
  2. Step 2: Convert to fraction form
    91,015.04/136,584.06 = 31,851.22/x
  3. Step 3: Cross multiply
    91,015.04x = 136,584.06 × 31,851.22
  4. Step 4: Simplify right side
    91,015.04x = 4,350,368,943.55
  5. Step 5: Solve for x
    x = 4,350,368,943.55/91,015.04
  6. Step 6: Final answer
    x = 47,798.35

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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.