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Finding the Fourth Proportional to 74,937.48, 103,410.64 and 40,947.13

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Solution

The fourth proportional to 74,937.48, 103,410.64 and 40,947.13 is: 56,505.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,937.48 : 103,410.64 = 40,947.13 : x
  2. Step 2: Convert to fraction form
    74,937.48/103,410.64 = 40,947.13/x
  3. Step 3: Cross multiply
    74,937.48x = 103,410.64 × 40,947.13
  4. Step 4: Simplify right side
    74,937.48x = 4,234,368,919.46
  5. Step 5: Solve for x
    x = 4,234,368,919.46/74,937.48
  6. Step 6: Final answer
    x = 56,505.36

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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.