Home / 75,314.07-112,820.49-45,311.76

Finding the Fourth Proportional to 75,314.07, 112,820.49 and 45,311.76

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Solution

The fourth proportional to 75,314.07, 112,820.49 and 45,311.76 is: 67,877.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,314.07 : 112,820.49 = 45,311.76 : x
  2. Step 2: Convert to fraction form
    75,314.07/112,820.49 = 45,311.76/x
  3. Step 3: Cross multiply
    75,314.07x = 112,820.49 × 45,311.76
  4. Step 4: Simplify right side
    75,314.07x = 5,112,094,965.96
  5. Step 5: Solve for x
    x = 5,112,094,965.96/75,314.07
  6. Step 6: Final answer
    x = 67,877.02

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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.