Home / 76,172.40-114,332.28-36,757.20

Finding the Fourth Proportional to 76,172.40, 114,332.28 and 36,757.20

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Solution

The fourth proportional to 76,172.40, 114,332.28 and 36,757.20 is: 55,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,172.40 : 114,332.28 = 36,757.20 : x
  2. Step 2: Convert to fraction form
    76,172.40/114,332.28 = 36,757.20/x
  3. Step 3: Cross multiply
    76,172.40x = 114,332.28 × 36,757.20
  4. Step 4: Simplify right side
    76,172.40x = 4,202,534,482.42
  5. Step 5: Solve for x
    x = 4,202,534,482.42/76,172.40
  6. Step 6: Final answer
    x = 55,171.35

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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.