Home / 91,140.84-136,742.04-57,432.24

Finding the Fourth Proportional to 91,140.84, 136,742.04 and 57,432.24

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Solution

The fourth proportional to 91,140.84, 136,742.04 and 57,432.24 is: 86,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,140.84 : 136,742.04 = 57,432.24 : x
  2. Step 2: Convert to fraction form
    91,140.84/136,742.04 = 57,432.24/x
  3. Step 3: Cross multiply
    91,140.84x = 136,742.04 × 57,432.24
  4. Step 4: Simplify right side
    91,140.84x = 7,853,401,659.37
  5. Step 5: Solve for x
    x = 7,853,401,659.37/91,140.84
  6. Step 6: Final answer
    x = 86,167.76

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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.