Home / 51,739.47-77,609.16-13,788.75

Finding the Fourth Proportional to 51,739.47, 77,609.16 and 13,788.75

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Solution

The fourth proportional to 51,739.47, 77,609.16 and 13,788.75 is: 20,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,739.47 : 77,609.16 = 13,788.75 : x
  2. Step 2: Convert to fraction form
    51,739.47/77,609.16 = 13,788.75/x
  3. Step 3: Cross multiply
    51,739.47x = 77,609.16 × 13,788.75
  4. Step 4: Simplify right side
    51,739.47x = 1,070,133,304.95
  5. Step 5: Solve for x
    x = 1,070,133,304.95/51,739.47
  6. Step 6: Final answer
    x = 20,683.11

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1.5x scale

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.