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Finding the Fourth Proportional to 65,960.73, 91,030.64 and 37,665.81

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Solution

The fourth proportional to 65,960.73, 91,030.64 and 37,665.81 is: 51,981.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,960.73 : 91,030.64 = 37,665.81 : x
  2. Step 2: Convert to fraction form
    65,960.73/91,030.64 = 37,665.81/x
  3. Step 3: Cross multiply
    65,960.73x = 91,030.64 × 37,665.81
  4. Step 4: Simplify right side
    65,960.73x = 3,428,742,602.09
  5. Step 5: Solve for x
    x = 3,428,742,602.09/65,960.73
  6. Step 6: Final answer
    x = 51,981.57

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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.