Home / 85,318.92-127,878.75-64,191.11

Finding the Fourth Proportional to 85,318.92, 127,878.75 and 64,191.11

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Solution

The fourth proportional to 85,318.92, 127,878.75 and 64,191.11 is: 96,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,318.92 : 127,878.75 = 64,191.11 : x
  2. Step 2: Convert to fraction form
    85,318.92/127,878.75 = 64,191.11/x
  3. Step 3: Cross multiply
    85,318.92x = 127,878.75 × 64,191.11
  4. Step 4: Simplify right side
    85,318.92x = 8,208,678,268.52
  5. Step 5: Solve for x
    x = 8,208,678,268.52/85,318.92
  6. Step 6: Final answer
    x = 96,211.70

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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.