Home / 77,568.12-107,045-45,735.12

Finding the Fourth Proportional to 77,568.12, 107,045 and 45,735.12

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Solution

The fourth proportional to 77,568.12, 107,045 and 45,735.12 is: 63,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,568.12 : 107,045 = 45,735.12 : x
  2. Step 2: Convert to fraction form
    77,568.12/107,045 = 45,735.12/x
  3. Step 3: Cross multiply
    77,568.12x = 107,045 × 45,735.12
  4. Step 4: Simplify right side
    77,568.12x = 4,895,715,920.40
  5. Step 5: Solve for x
    x = 4,895,715,920.40/77,568.12
  6. Step 6: Final answer
    x = 63,115.05

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1.5x scale

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.