Home / 78,714.16-118,045.60-26,109.52

Finding the Fourth Proportional to 78,714.16, 118,045.60 and 26,109.52

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Solution

The fourth proportional to 78,714.16, 118,045.60 and 26,109.52 is: 39,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,714.16 : 118,045.60 = 26,109.52 : x
  2. Step 2: Convert to fraction form
    78,714.16/118,045.60 = 26,109.52/x
  3. Step 3: Cross multiply
    78,714.16x = 118,045.60 × 26,109.52
  4. Step 4: Simplify right side
    78,714.16x = 3,082,113,954.11
  5. Step 5: Solve for x
    x = 3,082,113,954.11/78,714.16
  6. Step 6: Final answer
    x = 39,155.78

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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.