Home / 66,428.30-91,673.26-39,567.15

Finding the Fourth Proportional to 66,428.30, 91,673.26 and 39,567.15

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Solution

The fourth proportional to 66,428.30, 91,673.26 and 39,567.15 is: 54,603.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428.30 : 91,673.26 = 39,567.15 : x
  2. Step 2: Convert to fraction form
    66,428.30/91,673.26 = 39,567.15/x
  3. Step 3: Cross multiply
    66,428.30x = 91,673.26 × 39,567.15
  4. Step 4: Simplify right side
    66,428.30x = 3,627,249,530.49
  5. Step 5: Solve for x
    x = 3,627,249,530.49/66,428.30
  6. Step 6: Final answer
    x = 54,603.98

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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.