Home / 66,191.25-91,341.67-37,891.47

Finding the Fourth Proportional to 66,191.25, 91,341.67 and 37,891.47

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Solution

The fourth proportional to 66,191.25, 91,341.67 and 37,891.47 is: 52,288.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,191.25 : 91,341.67 = 37,891.47 : x
  2. Step 2: Convert to fraction form
    66,191.25/91,341.67 = 37,891.47/x
  3. Step 3: Cross multiply
    66,191.25x = 91,341.67 × 37,891.47
  4. Step 4: Simplify right side
    66,191.25x = 3,461,070,148.55
  5. Step 5: Solve for x
    x = 3,461,070,148.55/66,191.25
  6. Step 6: Final answer
    x = 52,288.94

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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.