Home / 66,140.56-91,264.40-37,840.96

Finding the Fourth Proportional to 66,140.56, 91,264.40 and 37,840.96

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Solution

The fourth proportional to 66,140.56, 91,264.40 and 37,840.96 is: 52,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,140.56 : 91,264.40 = 37,840.96 : x
  2. Step 2: Convert to fraction form
    66,140.56/91,264.40 = 37,840.96/x
  3. Step 3: Cross multiply
    66,140.56x = 91,264.40 × 37,840.96
  4. Step 4: Simplify right side
    66,140.56x = 3,453,532,509.82
  5. Step 5: Solve for x
    x = 3,453,532,509.82/66,140.56
  6. Step 6: Final answer
    x = 52,215.05

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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.