Home / 75,036.39-112,554.53-30,078.06

Finding the Fourth Proportional to 75,036.39, 112,554.53 and 30,078.06

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Solution

The fourth proportional to 75,036.39, 112,554.53 and 30,078.06 is: 45,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,036.39 : 112,554.53 = 30,078.06 : x
  2. Step 2: Convert to fraction form
    75,036.39/112,554.53 = 30,078.06/x
  3. Step 3: Cross multiply
    75,036.39x = 112,554.53 × 30,078.06
  4. Step 4: Simplify right side
    75,036.39x = 3,385,421,756.22
  5. Step 5: Solve for x
    x = 3,385,421,756.22/75,036.39
  6. Step 6: Final answer
    x = 45,117.07

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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.