Home / 66,727.98-91,874.79-56,635.38

Finding the Fourth Proportional to 66,727.98, 91,874.79 and 56,635.38

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Solution

The fourth proportional to 66,727.98, 91,874.79 and 56,635.38 is: 77,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,727.98 : 91,874.79 = 56,635.38 : x
  2. Step 2: Convert to fraction form
    66,727.98/91,874.79 = 56,635.38/x
  3. Step 3: Cross multiply
    66,727.98x = 91,874.79 × 56,635.38
  4. Step 4: Simplify right side
    66,727.98x = 5,203,363,644.07
  5. Step 5: Solve for x
    x = 5,203,363,644.07/66,727.98
  6. Step 6: Final answer
    x = 77,978.74

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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.