Home / 78,595.38-117,907.65-26,005.32

Finding the Fourth Proportional to 78,595.38, 117,907.65 and 26,005.32

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Solution

The fourth proportional to 78,595.38, 117,907.65 and 26,005.32 is: 39,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,595.38 : 117,907.65 = 26,005.32 : x
  2. Step 2: Convert to fraction form
    78,595.38/117,907.65 = 26,005.32/x
  3. Step 3: Cross multiply
    78,595.38x = 117,907.65 × 26,005.32
  4. Step 4: Simplify right side
    78,595.38x = 3,066,226,168.70
  5. Step 5: Solve for x
    x = 3,066,226,168.70/78,595.38
  6. Step 6: Final answer
    x = 39,012.80

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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.