Home / 57,120.12-85,510.08-51,113.16

Finding the Fourth Proportional to 57,120.12, 85,510.08 and 51,113.16

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Solution

The fourth proportional to 57,120.12, 85,510.08 and 51,113.16 is: 76,517.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120.12 : 85,510.08 = 51,113.16 : x
  2. Step 2: Convert to fraction form
    57,120.12/85,510.08 = 51,113.16/x
  3. Step 3: Cross multiply
    57,120.12x = 85,510.08 × 51,113.16
  4. Step 4: Simplify right side
    57,120.12x = 4,370,690,400.65
  5. Step 5: Solve for x
    x = 4,370,690,400.65/57,120.12
  6. Step 6: Final answer
    x = 76,517.53

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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.