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Finding the Fourth Proportional to 73,415.38, 101,361.98 and 56,389.18

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Solution

The fourth proportional to 73,415.38, 101,361.98 and 56,389.18 is: 77,854.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,415.38 : 101,361.98 = 56,389.18 : x
  2. Step 2: Convert to fraction form
    73,415.38/101,361.98 = 56,389.18/x
  3. Step 3: Cross multiply
    73,415.38x = 101,361.98 × 56,389.18
  4. Step 4: Simplify right side
    73,415.38x = 5,715,718,949.65
  5. Step 5: Solve for x
    x = 5,715,718,949.65/73,415.38
  6. Step 6: Final answer
    x = 77,854.52

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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.