Home / 85,330.08-128,085.30-47,922.12

Finding the Fourth Proportional to 85,330.08, 128,085.30 and 47,922.12

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Solution

The fourth proportional to 85,330.08, 128,085.30 and 47,922.12 is: 71,933.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,330.08 : 128,085.30 = 47,922.12 : x
  2. Step 2: Convert to fraction form
    85,330.08/128,085.30 = 47,922.12/x
  3. Step 3: Cross multiply
    85,330.08x = 128,085.30 × 47,922.12
  4. Step 4: Simplify right side
    85,330.08x = 6,138,119,116.84
  5. Step 5: Solve for x
    x = 6,138,119,116.84/85,330.08
  6. Step 6: Final answer
    x = 71,933.83

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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.