Home / 76,629.12-114,888.24-51,607.20

Finding the Fourth Proportional to 76,629.12, 114,888.24 and 51,607.20

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Solution

The fourth proportional to 76,629.12, 114,888.24 and 51,607.20 is: 77,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,629.12 : 114,888.24 = 51,607.20 : x
  2. Step 2: Convert to fraction form
    76,629.12/114,888.24 = 51,607.20/x
  3. Step 3: Cross multiply
    76,629.12x = 114,888.24 × 51,607.20
  4. Step 4: Simplify right side
    76,629.12x = 5,929,060,379.33
  5. Step 5: Solve for x
    x = 5,929,060,379.33/76,629.12
  6. Step 6: Final answer
    x = 77,373.46

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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.