Home / 66,140.96-91,275.51-35,926.87

Finding the Fourth Proportional to 66,140.96, 91,275.51 and 35,926.87

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Solution

The fourth proportional to 66,140.96, 91,275.51 and 35,926.87 is: 49,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,140.96 : 91,275.51 = 35,926.87 : x
  2. Step 2: Convert to fraction form
    66,140.96/91,275.51 = 35,926.87/x
  3. Step 3: Cross multiply
    66,140.96x = 91,275.51 × 35,926.87
  4. Step 4: Simplify right side
    66,140.96x = 3,279,243,381.95
  5. Step 5: Solve for x
    x = 3,279,243,381.95/66,140.96
  6. Step 6: Final answer
    x = 49,579.62

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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.