Home / 78,827.10-118,240.65-49,278.30

Finding the Fourth Proportional to 78,827.10, 118,240.65 and 49,278.30

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Solution

The fourth proportional to 78,827.10, 118,240.65 and 49,278.30 is: 73,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,827.10 : 118,240.65 = 49,278.30 : x
  2. Step 2: Convert to fraction form
    78,827.10/118,240.65 = 49,278.30/x
  3. Step 3: Cross multiply
    78,827.10x = 118,240.65 × 49,278.30
  4. Step 4: Simplify right side
    78,827.10x = 5,826,698,222.90
  5. Step 5: Solve for x
    x = 5,826,698,222.90/78,827.10
  6. Step 6: Final answer
    x = 73,917.45

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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.