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Finding the Fourth Proportional to 66,460.73, 91,663.97 and 42,589.62

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Solution

The fourth proportional to 66,460.73, 91,663.97 and 42,589.62 is: 58,740.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,460.73 : 91,663.97 = 42,589.62 : x
  2. Step 2: Convert to fraction form
    66,460.73/91,663.97 = 42,589.62/x
  3. Step 3: Cross multiply
    66,460.73x = 91,663.97 × 42,589.62
  4. Step 4: Simplify right side
    66,460.73x = 3,903,933,437.04
  5. Step 5: Solve for x
    x = 3,903,933,437.04/66,460.73
  6. Step 6: Final answer
    x = 58,740.46

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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.