Home / 76,289.14-105,278.50-42,297.63

Finding the Fourth Proportional to 76,289.14, 105,278.50 and 42,297.63

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Solution

The fourth proportional to 76,289.14, 105,278.50 and 42,297.63 is: 58,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,289.14 : 105,278.50 = 42,297.63 : x
  2. Step 2: Convert to fraction form
    76,289.14/105,278.50 = 42,297.63/x
  3. Step 3: Cross multiply
    76,289.14x = 105,278.50 × 42,297.63
  4. Step 4: Simplify right side
    76,289.14x = 4,453,030,963.73
  5. Step 5: Solve for x
    x = 4,453,030,963.73/76,289.14
  6. Step 6: Final answer
    x = 58,370.44

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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.