Home / 45,235.12-67,958.70-42,678.92

Finding the Fourth Proportional to 45,235.12, 67,958.70 and 42,678.92

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Solution

The fourth proportional to 45,235.12, 67,958.70 and 42,678.92 is: 64,118.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,235.12 : 67,958.70 = 42,678.92 : x
  2. Step 2: Convert to fraction form
    45,235.12/67,958.70 = 42,678.92/x
  3. Step 3: Cross multiply
    45,235.12x = 67,958.70 × 42,678.92
  4. Step 4: Simplify right side
    45,235.12x = 2,900,403,920.60
  5. Step 5: Solve for x
    x = 2,900,403,920.60/45,235.12
  6. Step 6: Final answer
    x = 64,118.41

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1.5x scale

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.