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Finding the Fourth Proportional to 74,977.80, 112,411.27 and 35,488.68

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Solution

The fourth proportional to 74,977.80, 112,411.27 and 35,488.68 is: 53,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,977.80 : 112,411.27 = 35,488.68 : x
  2. Step 2: Convert to fraction form
    74,977.80/112,411.27 = 35,488.68/x
  3. Step 3: Cross multiply
    74,977.80x = 112,411.27 × 35,488.68
  4. Step 4: Simplify right side
    74,977.80x = 3,989,327,589.42
  5. Step 5: Solve for x
    x = 3,989,327,589.42/74,977.80
  6. Step 6: Final answer
    x = 53,206.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.