Home / 85,949.08-128,923.45-48,492.15

Finding the Fourth Proportional to 85,949.08, 128,923.45 and 48,492.15

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Solution

The fourth proportional to 85,949.08, 128,923.45 and 48,492.15 is: 72,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,949.08 : 128,923.45 = 48,492.15 : x
  2. Step 2: Convert to fraction form
    85,949.08/128,923.45 = 48,492.15/x
  3. Step 3: Cross multiply
    85,949.08x = 128,923.45 × 48,492.15
  4. Step 4: Simplify right side
    85,949.08x = 6,251,775,396.42
  5. Step 5: Solve for x
    x = 6,251,775,396.42/85,949.08
  6. Step 6: Final answer
    x = 72,738.13

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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.