Home / 66,140.77-91,275.36-35,926.15

Finding the Fourth Proportional to 66,140.77, 91,275.36 and 35,926.15

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Solution

The fourth proportional to 66,140.77, 91,275.36 and 35,926.15 is: 49,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,140.77 : 91,275.36 = 35,926.15 : x
  2. Step 2: Convert to fraction form
    66,140.77/91,275.36 = 35,926.15/x
  3. Step 3: Cross multiply
    66,140.77x = 91,275.36 × 35,926.15
  4. Step 4: Simplify right side
    66,140.77x = 3,279,171,818.29
  5. Step 5: Solve for x
    x = 3,279,171,818.29/66,140.77
  6. Step 6: Final answer
    x = 49,578.68

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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.