Home / 91,013.16-136,510.04-31,849.96

Finding the Fourth Proportional to 91,013.16, 136,510.04 and 31,849.96

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Solution

The fourth proportional to 91,013.16, 136,510.04 and 31,849.96 is: 47,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,013.16 : 136,510.04 = 31,849.96 : x
  2. Step 2: Convert to fraction form
    91,013.16/136,510.04 = 31,849.96/x
  3. Step 3: Cross multiply
    91,013.16x = 136,510.04 × 31,849.96
  4. Step 4: Simplify right side
    91,013.16x = 4,347,839,313.60
  5. Step 5: Solve for x
    x = 4,347,839,313.60/91,013.16
  6. Step 6: Final answer
    x = 47,771.55

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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.