Home / 87,050.79-120,182.52-56,886.60

Finding the Fourth Proportional to 87,050.79, 120,182.52 and 56,886.60

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Solution

The fourth proportional to 87,050.79, 120,182.52 and 56,886.60 is: 78,537.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,050.79 : 120,182.52 = 56,886.60 : x
  2. Step 2: Convert to fraction form
    87,050.79/120,182.52 = 56,886.60/x
  3. Step 3: Cross multiply
    87,050.79x = 120,182.52 × 56,886.60
  4. Step 4: Simplify right side
    87,050.79x = 6,836,774,942.23
  5. Step 5: Solve for x
    x = 6,836,774,942.23/87,050.79
  6. Step 6: Final answer
    x = 78,537.77

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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.