Home / 66,437.06-91,660.14-42,576.88

Finding the Fourth Proportional to 66,437.06, 91,660.14 and 42,576.88

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Solution

The fourth proportional to 66,437.06, 91,660.14 and 42,576.88 is: 58,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,437.06 : 91,660.14 = 42,576.88 : x
  2. Step 2: Convert to fraction form
    66,437.06/91,660.14 = 42,576.88/x
  3. Step 3: Cross multiply
    66,437.06x = 91,660.14 × 42,576.88
  4. Step 4: Simplify right side
    66,437.06x = 3,902,602,781.56
  5. Step 5: Solve for x
    x = 3,902,602,781.56/66,437.06
  6. Step 6: Final answer
    x = 58,741.35

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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.