Home / 66,087.18-91,178.10-42,227.82

Finding the Fourth Proportional to 66,087.18, 91,178.10 and 42,227.82

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Solution

The fourth proportional to 66,087.18, 91,178.10 and 42,227.82 is: 58,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,087.18 : 91,178.10 = 42,227.82 : x
  2. Step 2: Convert to fraction form
    66,087.18/91,178.10 = 42,227.82/x
  3. Step 3: Cross multiply
    66,087.18x = 91,178.10 × 42,227.82
  4. Step 4: Simplify right side
    66,087.18x = 3,850,252,394.74
  5. Step 5: Solve for x
    x = 3,850,252,394.74/66,087.18
  6. Step 6: Final answer
    x = 58,260.20

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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.