Home / 76,931.16-115,450.95-27,015.15

Finding the Fourth Proportional to 76,931.16, 115,450.95 and 27,015.15

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Solution

The fourth proportional to 76,931.16, 115,450.95 and 27,015.15 is: 40,541.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,931.16 : 115,450.95 = 27,015.15 : x
  2. Step 2: Convert to fraction form
    76,931.16/115,450.95 = 27,015.15/x
  3. Step 3: Cross multiply
    76,931.16x = 115,450.95 × 27,015.15
  4. Step 4: Simplify right side
    76,931.16x = 3,118,924,235.04
  5. Step 5: Solve for x
    x = 3,118,924,235.04/76,931.16
  6. Step 6: Final answer
    x = 40,541.75

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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.