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Finding the Fourth Proportional to 66,070.71, 91,178.25 and 35,856.29

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Solution

The fourth proportional to 66,070.71, 91,178.25 and 35,856.29 is: 49,482.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,070.71 : 91,178.25 = 35,856.29 : x
  2. Step 2: Convert to fraction form
    66,070.71/91,178.25 = 35,856.29/x
  3. Step 3: Cross multiply
    66,070.71x = 91,178.25 × 35,856.29
  4. Step 4: Simplify right side
    66,070.71x = 3,269,313,912.00
  5. Step 5: Solve for x
    x = 3,269,313,912.00/66,070.71
  6. Step 6: Final answer
    x = 49,482.05

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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.