Home / 75,031.92-103,323.60-67,071.24

Finding the Fourth Proportional to 75,031.92, 103,323.60 and 67,071.24

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Solution

The fourth proportional to 75,031.92, 103,323.60 and 67,071.24 is: 92,361.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,031.92 : 103,323.60 = 67,071.24 : x
  2. Step 2: Convert to fraction form
    75,031.92/103,323.60 = 67,071.24/x
  3. Step 3: Cross multiply
    75,031.92x = 103,323.60 × 67,071.24
  4. Step 4: Simplify right side
    75,031.92x = 6,930,041,973.26
  5. Step 5: Solve for x
    x = 6,930,041,973.26/75,031.92
  6. Step 6: Final answer
    x = 92,361.25

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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.