Home / 66,849.28-92,243.22-39,981.98

Finding the Fourth Proportional to 66,849.28, 92,243.22 and 39,981.98

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Solution

The fourth proportional to 66,849.28, 92,243.22 and 39,981.98 is: 55,169.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,849.28 : 92,243.22 = 39,981.98 : x
  2. Step 2: Convert to fraction form
    66,849.28/92,243.22 = 39,981.98/x
  3. Step 3: Cross multiply
    66,849.28x = 92,243.22 × 39,981.98
  4. Step 4: Simplify right side
    66,849.28x = 3,688,066,577.18
  5. Step 5: Solve for x
    x = 3,688,066,577.18/66,849.28
  6. Step 6: Final answer
    x = 55,169.88

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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.