Home / 52,203.60-78,305.40-12,761.10

Finding the Fourth Proportional to 52,203.60, 78,305.40 and 12,761.10

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Solution

The fourth proportional to 52,203.60, 78,305.40 and 12,761.10 is: 19,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,203.60 : 78,305.40 = 12,761.10 : x
  2. Step 2: Convert to fraction form
    52,203.60/78,305.40 = 12,761.10/x
  3. Step 3: Cross multiply
    52,203.60x = 78,305.40 × 12,761.10
  4. Step 4: Simplify right side
    52,203.60x = 999,263,039.94
  5. Step 5: Solve for x
    x = 999,263,039.94/52,203.60
  6. Step 6: Final answer
    x = 19,141.65

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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.