Home / 51,261.18-76,894.10-15,719.90

Finding the Fourth Proportional to 51,261.18, 76,894.10 and 15,719.90

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Solution

The fourth proportional to 51,261.18, 76,894.10 and 15,719.90 is: 23,580.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,261.18 : 76,894.10 = 15,719.90 : x
  2. Step 2: Convert to fraction form
    51,261.18/76,894.10 = 15,719.90/x
  3. Step 3: Cross multiply
    51,261.18x = 76,894.10 × 15,719.90
  4. Step 4: Simplify right side
    51,261.18x = 1,208,767,158.47
  5. Step 5: Solve for x
    x = 1,208,767,158.47/51,261.18
  6. Step 6: Final answer
    x = 23,580.56

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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.