Home / 74,215.85-102,418.58-42,384.52

Finding the Fourth Proportional to 74,215.85, 102,418.58 and 42,384.52

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Solution

The fourth proportional to 74,215.85, 102,418.58 and 42,384.52 is: 58,491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,215.85 : 102,418.58 = 42,384.52 : x
  2. Step 2: Convert to fraction form
    74,215.85/102,418.58 = 42,384.52/x
  3. Step 3: Cross multiply
    74,215.85x = 102,418.58 × 42,384.52
  4. Step 4: Simplify right side
    74,215.85x = 4,340,961,771.85
  5. Step 5: Solve for x
    x = 4,340,961,771.85/74,215.85
  6. Step 6: Final answer
    x = 58,491.04

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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.