Home / 66,943.12-92,305.76-42,711.66

Finding the Fourth Proportional to 66,943.12, 92,305.76 and 42,711.66

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Solution

The fourth proportional to 66,943.12, 92,305.76 and 42,711.66 is: 58,893.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,943.12 : 92,305.76 = 42,711.66 : x
  2. Step 2: Convert to fraction form
    66,943.12/92,305.76 = 42,711.66/x
  3. Step 3: Cross multiply
    66,943.12x = 92,305.76 × 42,711.66
  4. Step 4: Simplify right side
    66,943.12x = 3,942,532,237.16
  5. Step 5: Solve for x
    x = 3,942,532,237.16/66,943.12
  6. Step 6: Final answer
    x = 58,893.76

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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.