Home / 56,569.20-84,878.10-28,867.20

Finding the Fourth Proportional to 56,569.20, 84,878.10 and 28,867.20

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Solution

The fourth proportional to 56,569.20, 84,878.10 and 28,867.20 is: 43,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,569.20 : 84,878.10 = 28,867.20 : x
  2. Step 2: Convert to fraction form
    56,569.20/84,878.10 = 28,867.20/x
  3. Step 3: Cross multiply
    56,569.20x = 84,878.10 × 28,867.20
  4. Step 4: Simplify right side
    56,569.20x = 2,450,193,088.32
  5. Step 5: Solve for x
    x = 2,450,193,088.32/56,569.20
  6. Step 6: Final answer
    x = 43,313.20

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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.