Home / 99,342.72-137,103.36-56,893.44

Finding the Fourth Proportional to 99,342.72, 137,103.36 and 56,893.44

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Solution

The fourth proportional to 99,342.72, 137,103.36 and 56,893.44 is: 78,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,342.72 : 137,103.36 = 56,893.44 : x
  2. Step 2: Convert to fraction form
    99,342.72/137,103.36 = 56,893.44/x
  3. Step 3: Cross multiply
    99,342.72x = 137,103.36 × 56,893.44
  4. Step 4: Simplify right side
    99,342.72x = 7,800,281,785.96
  5. Step 5: Solve for x
    x = 7,800,281,785.96/99,342.72
  6. Step 6: Final answer
    x = 78,518.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.