Home / 78,815.18-118,240.59-26,226.74

Finding the Fourth Proportional to 78,815.18, 118,240.59 and 26,226.74

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Solution

The fourth proportional to 78,815.18, 118,240.59 and 26,226.74 is: 39,346.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,815.18 : 118,240.59 = 26,226.74 : x
  2. Step 2: Convert to fraction form
    78,815.18/118,240.59 = 26,226.74/x
  3. Step 3: Cross multiply
    78,815.18x = 118,240.59 × 26,226.74
  4. Step 4: Simplify right side
    78,815.18x = 3,101,065,211.38
  5. Step 5: Solve for x
    x = 3,101,065,211.38/78,815.18
  6. Step 6: Final answer
    x = 39,346.04

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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.