Home / 76,279.11-114,420.33-53,697.51

Finding the Fourth Proportional to 76,279.11, 114,420.33 and 53,697.51

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Solution

The fourth proportional to 76,279.11, 114,420.33 and 53,697.51 is: 80,547.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,279.11 : 114,420.33 = 53,697.51 : x
  2. Step 2: Convert to fraction form
    76,279.11/114,420.33 = 53,697.51/x
  3. Step 3: Cross multiply
    76,279.11x = 114,420.33 × 53,697.51
  4. Step 4: Simplify right side
    76,279.11x = 6,144,086,814.38
  5. Step 5: Solve for x
    x = 6,144,086,814.38/76,279.11
  6. Step 6: Final answer
    x = 80,547.44

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1.5x scale

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.