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Finding the Fourth Proportional to 56,117.40, 84,176.10 and 54,821.40

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Solution

The fourth proportional to 56,117.40, 84,176.10 and 54,821.40 is: 82,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,117.40 : 84,176.10 = 54,821.40 : x
  2. Step 2: Convert to fraction form
    56,117.40/84,176.10 = 54,821.40/x
  3. Step 3: Cross multiply
    56,117.40x = 84,176.10 × 54,821.40
  4. Step 4: Simplify right side
    56,117.40x = 4,614,651,648.54
  5. Step 5: Solve for x
    x = 4,614,651,648.54/56,117.40
  6. Step 6: Final answer
    x = 82,232.10

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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.