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Finding the Fourth Proportional to 84,304.34, 116,433.87 and 65,412.53

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Solution

The fourth proportional to 84,304.34, 116,433.87 and 65,412.53 is: 90,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,304.34 : 116,433.87 = 65,412.53 : x
  2. Step 2: Convert to fraction form
    84,304.34/116,433.87 = 65,412.53/x
  3. Step 3: Cross multiply
    84,304.34x = 116,433.87 × 65,412.53
  4. Step 4: Simplify right side
    84,304.34x = 7,616,234,014.39
  5. Step 5: Solve for x
    x = 7,616,234,014.39/84,304.34
  6. Step 6: Final answer
    x = 90,342.13

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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.