Home / 66,191.28-91,341.73-37,891.50

Finding the Fourth Proportional to 66,191.28, 91,341.73 and 37,891.50

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Solution

The fourth proportional to 66,191.28, 91,341.73 and 37,891.50 is: 52,288.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,191.28 : 91,341.73 = 37,891.50 : x
  2. Step 2: Convert to fraction form
    66,191.28/91,341.73 = 37,891.50/x
  3. Step 3: Cross multiply
    66,191.28x = 91,341.73 × 37,891.50
  4. Step 4: Simplify right side
    66,191.28x = 3,461,074,653.99
  5. Step 5: Solve for x
    x = 3,461,074,653.99/66,191.28
  6. Step 6: Final answer
    x = 52,288.99

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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.