Home / 66,711.08-92,072.58-38,411.56

Finding the Fourth Proportional to 66,711.08, 92,072.58 and 38,411.56

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Solution

The fourth proportional to 66,711.08, 92,072.58 and 38,411.56 is: 53,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,711.08 : 92,072.58 = 38,411.56 : x
  2. Step 2: Convert to fraction form
    66,711.08/92,072.58 = 38,411.56/x
  3. Step 3: Cross multiply
    66,711.08x = 92,072.58 × 38,411.56
  4. Step 4: Simplify right side
    66,711.08x = 3,536,651,431.02
  5. Step 5: Solve for x
    x = 3,536,651,431.02/66,711.08
  6. Step 6: Final answer
    x = 53,014.45

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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.