Home / 66,600.06-91,908.28-38,303.88

Finding the Fourth Proportional to 66,600.06, 91,908.28 and 38,303.88

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Solution

The fourth proportional to 66,600.06, 91,908.28 and 38,303.88 is: 52,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,600.06 : 91,908.28 = 38,303.88 : x
  2. Step 2: Convert to fraction form
    66,600.06/91,908.28 = 38,303.88/x
  3. Step 3: Cross multiply
    66,600.06x = 91,908.28 × 38,303.88
  4. Step 4: Simplify right side
    66,600.06x = 3,520,443,728.13
  5. Step 5: Solve for x
    x = 3,520,443,728.13/66,600.06
  6. Step 6: Final answer
    x = 52,859.47

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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.