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Finding the Fourth Proportional to 73,485.28, 101,410.38 and 39,952

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Solution

The fourth proportional to 73,485.28, 101,410.38 and 39,952 is: 55,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,485.28 : 101,410.38 = 39,952 : x
  2. Step 2: Convert to fraction form
    73,485.28/101,410.38 = 39,952/x
  3. Step 3: Cross multiply
    73,485.28x = 101,410.38 × 39,952
  4. Step 4: Simplify right side
    73,485.28x = 4,051,547,501.76
  5. Step 5: Solve for x
    x = 4,051,547,501.76/73,485.28
  6. Step 6: Final answer
    x = 55,134.14

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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.