Home / 104,621.63-144,377.49-56,874.64

Finding the Fourth Proportional to 104,621.63, 144,377.49 and 56,874.64

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Solution

The fourth proportional to 104,621.63, 144,377.49 and 56,874.64 is: 78,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,621.63 : 144,377.49 = 56,874.64 : x
  2. Step 2: Convert to fraction form
    104,621.63/144,377.49 = 56,874.64/x
  3. Step 3: Cross multiply
    104,621.63x = 144,377.49 × 56,874.64
  4. Step 4: Simplify right side
    104,621.63x = 8,211,417,570.98
  5. Step 5: Solve for x
    x = 8,211,417,570.98/104,621.63
  6. Step 6: Final answer
    x = 78,486.81

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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.