Home / 75,039.42-112,434.18-52,806.09

Finding the Fourth Proportional to 75,039.42, 112,434.18 and 52,806.09

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Solution

The fourth proportional to 75,039.42, 112,434.18 and 52,806.09 is: 79,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,039.42 : 112,434.18 = 52,806.09 : x
  2. Step 2: Convert to fraction form
    75,039.42/112,434.18 = 52,806.09/x
  3. Step 3: Cross multiply
    75,039.42x = 112,434.18 × 52,806.09
  4. Step 4: Simplify right side
    75,039.42x = 5,937,209,428.16
  5. Step 5: Solve for x
    x = 5,937,209,428.16/75,039.42
  6. Step 6: Final answer
    x = 79,121.21

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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.