Home / 121,621.56-182,385.84-58,424.10

Finding the Fourth Proportional to 121,621.56, 182,385.84 and 58,424.10

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Solution

The fourth proportional to 121,621.56, 182,385.84 and 58,424.10 is: 87,613.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,621.56 : 182,385.84 = 58,424.10 : x
  2. Step 2: Convert to fraction form
    121,621.56/182,385.84 = 58,424.10/x
  3. Step 3: Cross multiply
    121,621.56x = 182,385.84 × 58,424.10
  4. Step 4: Simplify right side
    121,621.56x = 10,655,728,554.74
  5. Step 5: Solve for x
    x = 10,655,728,554.74/121,621.56
  6. Step 6: Final answer
    x = 87,613.81

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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.