Home / 76,267.85-105,248.30-42,276.20

Finding the Fourth Proportional to 76,267.85, 105,248.30 and 42,276.20

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Solution

The fourth proportional to 76,267.85, 105,248.30 and 42,276.20 is: 58,340.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,267.85 : 105,248.30 = 42,276.20 : x
  2. Step 2: Convert to fraction form
    76,267.85/105,248.30 = 42,276.20/x
  3. Step 3: Cross multiply
    76,267.85x = 105,248.30 × 42,276.20
  4. Step 4: Simplify right side
    76,267.85x = 4,449,497,442.84
  5. Step 5: Solve for x
    x = 4,449,497,442.84/76,267.85
  6. Step 6: Final answer
    x = 58,340.41

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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.