Home / 66,895.12-92,315.98-38,218.60

Finding the Fourth Proportional to 66,895.12, 92,315.98 and 38,218.60

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Solution

The fourth proportional to 66,895.12, 92,315.98 and 38,218.60 is: 52,742.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,895.12 : 92,315.98 = 38,218.60 : x
  2. Step 2: Convert to fraction form
    66,895.12/92,315.98 = 38,218.60/x
  3. Step 3: Cross multiply
    66,895.12x = 92,315.98 × 38,218.60
  4. Step 4: Simplify right side
    66,895.12x = 3,528,187,513.23
  5. Step 5: Solve for x
    x = 3,528,187,513.23/66,895.12
  6. Step 6: Final answer
    x = 52,742.08

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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.