Home / 66,711.38-92,137.29-45,453.74

Finding the Fourth Proportional to 66,711.38, 92,137.29 and 45,453.74

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Solution

The fourth proportional to 66,711.38, 92,137.29 and 45,453.74 is: 62,777.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,711.38 : 92,137.29 = 45,453.74 : x
  2. Step 2: Convert to fraction form
    66,711.38/92,137.29 = 45,453.74/x
  3. Step 3: Cross multiply
    66,711.38x = 92,137.29 × 45,453.74
  4. Step 4: Simplify right side
    66,711.38x = 4,187,984,423.96
  5. Step 5: Solve for x
    x = 4,187,984,423.96/66,711.38
  6. Step 6: Final answer
    x = 62,777.66

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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.