Home / 82,934.10-124,381.71-56,631.78

Finding the Fourth Proportional to 82,934.10, 124,381.71 and 56,631.78

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Solution

The fourth proportional to 82,934.10, 124,381.71 and 56,631.78 is: 84,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,934.10 : 124,381.71 = 56,631.78 : x
  2. Step 2: Convert to fraction form
    82,934.10/124,381.71 = 56,631.78/x
  3. Step 3: Cross multiply
    82,934.10x = 124,381.71 × 56,631.78
  4. Step 4: Simplify right side
    82,934.10x = 7,043,957,636.74
  5. Step 5: Solve for x
    x = 7,043,957,636.74/82,934.10
  6. Step 6: Final answer
    x = 84,934.40

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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.