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Finding the Fourth Proportional to 73,489.38, 101,433.71 and 45,178.66

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Solution

The fourth proportional to 73,489.38, 101,433.71 and 45,178.66 is: 62,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,489.38 : 101,433.71 = 45,178.66 : x
  2. Step 2: Convert to fraction form
    73,489.38/101,433.71 = 45,178.66/x
  3. Step 3: Cross multiply
    73,489.38x = 101,433.71 × 45,178.66
  4. Step 4: Simplify right side
    73,489.38x = 4,582,638,870.74
  5. Step 5: Solve for x
    x = 4,582,638,870.74/73,489.38
  6. Step 6: Final answer
    x = 62,357.84

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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.