Home / 75,865.30-113,810.27-28,484.12

Finding the Fourth Proportional to 75,865.30, 113,810.27 and 28,484.12

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Solution

The fourth proportional to 75,865.30, 113,810.27 and 28,484.12 is: 42,730.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,865.30 : 113,810.27 = 28,484.12 : x
  2. Step 2: Convert to fraction form
    75,865.30/113,810.27 = 28,484.12/x
  3. Step 3: Cross multiply
    75,865.30x = 113,810.27 × 28,484.12
  4. Step 4: Simplify right side
    75,865.30x = 3,241,785,530.02
  5. Step 5: Solve for x
    x = 3,241,785,530.02/75,865.30
  6. Step 6: Final answer
    x = 42,730.81

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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.