Home / 66,527.28-91,822.68-45,315

Finding the Fourth Proportional to 66,527.28, 91,822.68 and 45,315

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Solution

The fourth proportional to 66,527.28, 91,822.68 and 45,315 is: 62,544.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,527.28 : 91,822.68 = 45,315 : x
  2. Step 2: Convert to fraction form
    66,527.28/91,822.68 = 45,315/x
  3. Step 3: Cross multiply
    66,527.28x = 91,822.68 × 45,315
  4. Step 4: Simplify right side
    66,527.28x = 4,160,944,744.20
  5. Step 5: Solve for x
    x = 4,160,944,744.20/66,527.28
  6. Step 6: Final answer
    x = 62,544.94

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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.