Home / 67,005.12-92,453.28-39,776.16

Finding the Fourth Proportional to 67,005.12, 92,453.28 and 39,776.16

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Solution

The fourth proportional to 67,005.12, 92,453.28 and 39,776.16 is: 54,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,005.12 : 92,453.28 = 39,776.16 : x
  2. Step 2: Convert to fraction form
    67,005.12/92,453.28 = 39,776.16/x
  3. Step 3: Cross multiply
    67,005.12x = 92,453.28 × 39,776.16
  4. Step 4: Simplify right side
    67,005.12x = 3,677,436,457.80
  5. Step 5: Solve for x
    x = 3,677,436,457.80/67,005.12
  6. Step 6: Final answer
    x = 54,882.92

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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.