Home / 66,130.08-91,274.05-43,471.17

Finding the Fourth Proportional to 66,130.08, 91,274.05 and 43,471.17

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Solution

The fourth proportional to 66,130.08, 91,274.05 and 43,471.17 is: 59,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,130.08 : 91,274.05 = 43,471.17 : x
  2. Step 2: Convert to fraction form
    66,130.08/91,274.05 = 43,471.17/x
  3. Step 3: Cross multiply
    66,130.08x = 91,274.05 × 43,471.17
  4. Step 4: Simplify right side
    66,130.08x = 3,967,789,070.41
  5. Step 5: Solve for x
    x = 3,967,789,070.41/66,130.08
  6. Step 6: Final answer
    x = 59,999.76

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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.