Home / 78,815.10-118,233.45-26,219.10

Finding the Fourth Proportional to 78,815.10, 118,233.45 and 26,219.10

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Solution

The fourth proportional to 78,815.10, 118,233.45 and 26,219.10 is: 39,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,815.10 : 118,233.45 = 26,219.10 : x
  2. Step 2: Convert to fraction form
    78,815.10/118,233.45 = 26,219.10/x
  3. Step 3: Cross multiply
    78,815.10x = 118,233.45 × 26,219.10
  4. Step 4: Simplify right side
    78,815.10x = 3,099,974,648.90
  5. Step 5: Solve for x
    x = 3,099,974,648.90/78,815.10
  6. Step 6: Final answer
    x = 39,332.24

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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.