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Finding the Fourth Proportional to 56,579.40, 84,807.14 and 28,454.58

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Solution

The fourth proportional to 56,579.40, 84,807.14 and 28,454.58 is: 42,650.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,579.40 : 84,807.14 = 28,454.58 : x
  2. Step 2: Convert to fraction form
    56,579.40/84,807.14 = 28,454.58/x
  3. Step 3: Cross multiply
    56,579.40x = 84,807.14 × 28,454.58
  4. Step 4: Simplify right side
    56,579.40x = 2,413,151,407.43
  5. Step 5: Solve for x
    x = 2,413,151,407.43/56,579.40
  6. Step 6: Final answer
    x = 42,650.71

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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.