Home / 75,282.21-112,946.70-45,329.42

Finding the Fourth Proportional to 75,282.21, 112,946.70 and 45,329.42

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Solution

The fourth proportional to 75,282.21, 112,946.70 and 45,329.42 is: 68,008.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,282.21 : 112,946.70 = 45,329.42 : x
  2. Step 2: Convert to fraction form
    75,282.21/112,946.70 = 45,329.42/x
  3. Step 3: Cross multiply
    75,282.21x = 112,946.70 × 45,329.42
  4. Step 4: Simplify right side
    75,282.21x = 5,119,808,854.27
  5. Step 5: Solve for x
    x = 5,119,808,854.27/75,282.21
  6. Step 6: Final answer
    x = 68,008.22

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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.