Home / 85,158.32-127,743.96-28,981.04

Finding the Fourth Proportional to 85,158.32, 127,743.96 and 28,981.04

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Solution

The fourth proportional to 85,158.32, 127,743.96 and 28,981.04 is: 43,473.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,158.32 : 127,743.96 = 28,981.04 : x
  2. Step 2: Convert to fraction form
    85,158.32/127,743.96 = 28,981.04/x
  3. Step 3: Cross multiply
    85,158.32x = 127,743.96 × 28,981.04
  4. Step 4: Simplify right side
    85,158.32x = 3,702,152,814.52
  5. Step 5: Solve for x
    x = 3,702,152,814.52/85,158.32
  6. Step 6: Final answer
    x = 43,473.77

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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.