Home / 66,912.04-92,338.06-38,617.12

Finding the Fourth Proportional to 66,912.04, 92,338.06 and 38,617.12

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Solution

The fourth proportional to 66,912.04, 92,338.06 and 38,617.12 is: 53,291.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,912.04 : 92,338.06 = 38,617.12 : x
  2. Step 2: Convert to fraction form
    66,912.04/92,338.06 = 38,617.12/x
  3. Step 3: Cross multiply
    66,912.04x = 92,338.06 × 38,617.12
  4. Step 4: Simplify right side
    66,912.04x = 3,565,829,943.59
  5. Step 5: Solve for x
    x = 3,565,829,943.59/66,912.04
  6. Step 6: Final answer
    x = 53,291.31

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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.