Home / 66,911.77-92,338.12-38,617.45

Finding the Fourth Proportional to 66,911.77, 92,338.12 and 38,617.45

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Solution

The fourth proportional to 66,911.77, 92,338.12 and 38,617.45 is: 53,292.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,911.77 : 92,338.12 = 38,617.45 : x
  2. Step 2: Convert to fraction form
    66,911.77/92,338.12 = 38,617.45/x
  3. Step 3: Cross multiply
    66,911.77x = 92,338.12 × 38,617.45
  4. Step 4: Simplify right side
    66,911.77x = 3,565,862,732.19
  5. Step 5: Solve for x
    x = 3,565,862,732.19/66,911.77
  6. Step 6: Final answer
    x = 53,292.01

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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.