Home / 85,103.64-117,479.34-60,590.25

Finding the Fourth Proportional to 85,103.64, 117,479.34 and 60,590.25

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Solution

The fourth proportional to 85,103.64, 117,479.34 and 60,590.25 is: 83,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,103.64 : 117,479.34 = 60,590.25 : x
  2. Step 2: Convert to fraction form
    85,103.64/117,479.34 = 60,590.25/x
  3. Step 3: Cross multiply
    85,103.64x = 117,479.34 × 60,590.25
  4. Step 4: Simplify right side
    85,103.64x = 7,118,102,580.44
  5. Step 5: Solve for x
    x = 7,118,102,580.44/85,103.64
  6. Step 6: Final answer
    x = 83,640.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.