Home / 76,750.08-105,960.96-55,507.20

Finding the Fourth Proportional to 76,750.08, 105,960.96 and 55,507.20

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Solution

The fourth proportional to 76,750.08, 105,960.96 and 55,507.20 is: 76,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,750.08 : 105,960.96 = 55,507.20 : x
  2. Step 2: Convert to fraction form
    76,750.08/105,960.96 = 55,507.20/x
  3. Step 3: Cross multiply
    76,750.08x = 105,960.96 × 55,507.20
  4. Step 4: Simplify right side
    76,750.08x = 5,881,596,198.91
  5. Step 5: Solve for x
    x = 5,881,596,198.91/76,750.08
  6. Step 6: Final answer
    x = 76,633.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.