Home / 66,160.23-91,295.71-38,931.98

Finding the Fourth Proportional to 66,160.23, 91,295.71 and 38,931.98

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Solution

The fourth proportional to 66,160.23, 91,295.71 and 38,931.98 is: 53,722.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,160.23 : 91,295.71 = 38,931.98 : x
  2. Step 2: Convert to fraction form
    66,160.23/91,295.71 = 38,931.98/x
  3. Step 3: Cross multiply
    66,160.23x = 91,295.71 × 38,931.98
  4. Step 4: Simplify right side
    66,160.23x = 3,554,322,202.00
  5. Step 5: Solve for x
    x = 3,554,322,202.00/66,160.23
  6. Step 6: Final answer
    x = 53,722.95

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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.