Home / 75,353.12-112,878.80-45,350.72

Finding the Fourth Proportional to 75,353.12, 112,878.80 and 45,350.72

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Solution

The fourth proportional to 75,353.12, 112,878.80 and 45,350.72 is: 67,935.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,353.12 : 112,878.80 = 45,350.72 : x
  2. Step 2: Convert to fraction form
    75,353.12/112,878.80 = 45,350.72/x
  3. Step 3: Cross multiply
    75,353.12x = 112,878.80 × 45,350.72
  4. Step 4: Simplify right side
    75,353.12x = 5,119,134,852.74
  5. Step 5: Solve for x
    x = 5,119,134,852.74/75,353.12
  6. Step 6: Final answer
    x = 67,935.27

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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.