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Finding the Fourth Proportional to 74,314.92, 102,561.60 and 42,477.68

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Solution

The fourth proportional to 74,314.92, 102,561.60 and 42,477.68 is: 58,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,314.92 : 102,561.60 = 42,477.68 : x
  2. Step 2: Convert to fraction form
    74,314.92/102,561.60 = 42,477.68/x
  3. Step 3: Cross multiply
    74,314.92x = 102,561.60 × 42,477.68
  4. Step 4: Simplify right side
    74,314.92x = 4,356,578,825.09
  5. Step 5: Solve for x
    x = 4,356,578,825.09/74,314.92
  6. Step 6: Final answer
    x = 58,623.21

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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.