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Finding the Fourth Proportional to 74,417.30, 102,693.73 and 40,424.30

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Solution

The fourth proportional to 74,417.30, 102,693.73 and 40,424.30 is: 55,784.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,417.30 : 102,693.73 = 40,424.30 : x
  2. Step 2: Convert to fraction form
    74,417.30/102,693.73 = 40,424.30/x
  3. Step 3: Cross multiply
    74,417.30x = 102,693.73 × 40,424.30
  4. Step 4: Simplify right side
    74,417.30x = 4,151,322,149.64
  5. Step 5: Solve for x
    x = 4,151,322,149.64/74,417.30
  6. Step 6: Final answer
    x = 55,784.37

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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.