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Finding the Fourth Proportional to 73,636.31, 101,618.12 and 40,102.31

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Solution

The fourth proportional to 73,636.31, 101,618.12 and 40,102.31 is: 55,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,636.31 : 101,618.12 = 40,102.31 : x
  2. Step 2: Convert to fraction form
    73,636.31/101,618.12 = 40,102.31/x
  3. Step 3: Cross multiply
    73,636.31x = 101,618.12 × 40,102.31
  4. Step 4: Simplify right side
    73,636.31x = 4,075,121,704.16
  5. Step 5: Solve for x
    x = 4,075,121,704.16/73,636.31
  6. Step 6: Final answer
    x = 55,341.20

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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.