Home / 75,681.52-113,548.20-28,947.76

Finding the Fourth Proportional to 75,681.52, 113,548.20 and 28,947.76

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Solution

The fourth proportional to 75,681.52, 113,548.20 and 28,947.76 is: 43,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,681.52 : 113,548.20 = 28,947.76 : x
  2. Step 2: Convert to fraction form
    75,681.52/113,548.20 = 28,947.76/x
  3. Step 3: Cross multiply
    75,681.52x = 113,548.20 × 28,947.76
  4. Step 4: Simplify right side
    75,681.52x = 3,286,966,042.03
  5. Step 5: Solve for x
    x = 3,286,966,042.03/75,681.52
  6. Step 6: Final answer
    x = 43,431.55

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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.