Home / 78,818.10-118,160.58-36,676.44

Finding the Fourth Proportional to 78,818.10, 118,160.58 and 36,676.44

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Solution

The fourth proportional to 78,818.10, 118,160.58 and 36,676.44 is: 54,983.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,818.10 : 118,160.58 = 36,676.44 : x
  2. Step 2: Convert to fraction form
    78,818.10/118,160.58 = 36,676.44/x
  3. Step 3: Cross multiply
    78,818.10x = 118,160.58 × 36,676.44
  4. Step 4: Simplify right side
    78,818.10x = 4,333,709,422.74
  5. Step 5: Solve for x
    x = 4,333,709,422.74/78,818.10
  6. Step 6: Final answer
    x = 54,983.68

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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.