Home / 85,629.04-128,444.52-38,246.54

Finding the Fourth Proportional to 85,629.04, 128,444.52 and 38,246.54

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Solution

The fourth proportional to 85,629.04, 128,444.52 and 38,246.54 is: 57,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,629.04 : 128,444.52 = 38,246.54 : x
  2. Step 2: Convert to fraction form
    85,629.04/128,444.52 = 38,246.54/x
  3. Step 3: Cross multiply
    85,629.04x = 128,444.52 × 38,246.54
  4. Step 4: Simplify right side
    85,629.04x = 4,912,558,471.96
  5. Step 5: Solve for x
    x = 4,912,558,471.96/85,629.04
  6. Step 6: Final answer
    x = 57,370.24

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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.