Home / 66,709.02-92,069.82-38,431.14

Finding the Fourth Proportional to 66,709.02, 92,069.82 and 38,431.14

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Solution

The fourth proportional to 66,709.02, 92,069.82 and 38,431.14 is: 53,041.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,709.02 : 92,069.82 = 38,431.14 : x
  2. Step 2: Convert to fraction form
    66,709.02/92,069.82 = 38,431.14/x
  3. Step 3: Cross multiply
    66,709.02x = 92,069.82 × 38,431.14
  4. Step 4: Simplify right side
    66,709.02x = 3,538,348,142.19
  5. Step 5: Solve for x
    x = 3,538,348,142.19/66,709.02
  6. Step 6: Final answer
    x = 53,041.52

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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.