Home / 57,750.08-86,120.90-51,378.62

Finding the Fourth Proportional to 57,750.08, 86,120.90 and 51,378.62

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Solution

The fourth proportional to 57,750.08, 86,120.90 and 51,378.62 is: 76,619.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,750.08 : 86,120.90 = 51,378.62 : x
  2. Step 2: Convert to fraction form
    57,750.08/86,120.90 = 51,378.62/x
  3. Step 3: Cross multiply
    57,750.08x = 86,120.90 × 51,378.62
  4. Step 4: Simplify right side
    57,750.08x = 4,424,772,995.16
  5. Step 5: Solve for x
    x = 4,424,772,995.16/57,750.08
  6. Step 6: Final answer
    x = 76,619.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.