Home / 51,258.42-76,888.80-15,720.48

Finding the Fourth Proportional to 51,258.42, 76,888.80 and 15,720.48

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Solution

The fourth proportional to 51,258.42, 76,888.80 and 15,720.48 is: 23,581.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,258.42 : 76,888.80 = 15,720.48 : x
  2. Step 2: Convert to fraction form
    51,258.42/76,888.80 = 15,720.48/x
  3. Step 3: Cross multiply
    51,258.42x = 76,888.80 × 15,720.48
  4. Step 4: Simplify right side
    51,258.42x = 1,208,728,842.62
  5. Step 5: Solve for x
    x = 1,208,728,842.62/51,258.42
  6. Step 6: Final answer
    x = 23,581.08

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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.