Home / 75,209.28-112,807.44-28,462.56

Finding the Fourth Proportional to 75,209.28, 112,807.44 and 28,462.56

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Solution

The fourth proportional to 75,209.28, 112,807.44 and 28,462.56 is: 42,691.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,209.28 : 112,807.44 = 28,462.56 : x
  2. Step 2: Convert to fraction form
    75,209.28/112,807.44 = 28,462.56/x
  3. Step 3: Cross multiply
    75,209.28x = 112,807.44 × 28,462.56
  4. Step 4: Simplify right side
    75,209.28x = 3,210,788,529.45
  5. Step 5: Solve for x
    x = 3,210,788,529.45/75,209.28
  6. Step 6: Final answer
    x = 42,691.39

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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.