Home / 66,723.48-91,868.58-56,630.88

Finding the Fourth Proportional to 66,723.48, 91,868.58 and 56,630.88

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Solution

The fourth proportional to 66,723.48, 91,868.58 and 56,630.88 is: 77,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,723.48 : 91,868.58 = 56,630.88 : x
  2. Step 2: Convert to fraction form
    66,723.48/91,868.58 = 56,630.88/x
  3. Step 3: Cross multiply
    66,723.48x = 91,868.58 × 56,630.88
  4. Step 4: Simplify right side
    66,723.48x = 5,202,598,529.75
  5. Step 5: Solve for x
    x = 5,202,598,529.75/66,723.48
  6. Step 6: Final answer
    x = 77,972.53

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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.