Home / 79,516.40-109,743-51,304.16

Finding the Fourth Proportional to 79,516.40, 109,743 and 51,304.16

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Solution

The fourth proportional to 79,516.40, 109,743 and 51,304.16 is: 70,806.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,516.40 : 109,743 = 51,304.16 : x
  2. Step 2: Convert to fraction form
    79,516.40/109,743 = 51,304.16/x
  3. Step 3: Cross multiply
    79,516.40x = 109,743 × 51,304.16
  4. Step 4: Simplify right side
    79,516.40x = 5,630,272,430.88
  5. Step 5: Solve for x
    x = 5,630,272,430.88/79,516.40
  6. Step 6: Final answer
    x = 70,806.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.