Home / 75,512.45-113,237.70-28,130.69

Finding the Fourth Proportional to 75,512.45, 113,237.70 and 28,130.69

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Solution

The fourth proportional to 75,512.45, 113,237.70 and 28,130.69 is: 42,184.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,512.45 : 113,237.70 = 28,130.69 : x
  2. Step 2: Convert to fraction form
    75,512.45/113,237.70 = 28,130.69/x
  3. Step 3: Cross multiply
    75,512.45x = 113,237.70 × 28,130.69
  4. Step 4: Simplify right side
    75,512.45x = 3,185,454,812.62
  5. Step 5: Solve for x
    x = 3,185,454,812.62/75,512.45
  6. Step 6: Final answer
    x = 42,184.50

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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.