Home / 56,815.30-85,215.06-30,149.62

Finding the Fourth Proportional to 56,815.30, 85,215.06 and 30,149.62

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Solution

The fourth proportional to 56,815.30, 85,215.06 and 30,149.62 is: 45,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,815.30 : 85,215.06 = 30,149.62 : x
  2. Step 2: Convert to fraction form
    56,815.30/85,215.06 = 30,149.62/x
  3. Step 3: Cross multiply
    56,815.30x = 85,215.06 × 30,149.62
  4. Step 4: Simplify right side
    56,815.30x = 2,569,201,677.28
  5. Step 5: Solve for x
    x = 2,569,201,677.28/56,815.30
  6. Step 6: Final answer
    x = 45,220.24

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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.