Home / 78,742.98-118,112.85-26,152.92

Finding the Fourth Proportional to 78,742.98, 118,112.85 and 26,152.92

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Solution

The fourth proportional to 78,742.98, 118,112.85 and 26,152.92 is: 39,228.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,742.98 : 118,112.85 = 26,152.92 : x
  2. Step 2: Convert to fraction form
    78,742.98/118,112.85 = 26,152.92/x
  3. Step 3: Cross multiply
    78,742.98x = 118,112.85 × 26,152.92
  4. Step 4: Simplify right side
    78,742.98x = 3,088,995,917.02
  5. Step 5: Solve for x
    x = 3,088,995,917.02/78,742.98
  6. Step 6: Final answer
    x = 39,228.84

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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.