Home / 75,623.61-113,150.40-45,115.93

Finding the Fourth Proportional to 75,623.61, 113,150.40 and 45,115.93

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Solution

The fourth proportional to 75,623.61, 113,150.40 and 45,115.93 is: 67,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,623.61 : 113,150.40 = 45,115.93 : x
  2. Step 2: Convert to fraction form
    75,623.61/113,150.40 = 45,115.93/x
  3. Step 3: Cross multiply
    75,623.61x = 113,150.40 × 45,115.93
  4. Step 4: Simplify right side
    75,623.61x = 5,104,884,960.12
  5. Step 5: Solve for x
    x = 5,104,884,960.12/75,623.61
  6. Step 6: Final answer
    x = 67,503.85

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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.