Home / 45,258.45-67,776.84-31,898.58

Finding the Fourth Proportional to 45,258.45, 67,776.84 and 31,898.58

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Solution

The fourth proportional to 45,258.45, 67,776.84 and 31,898.58 is: 47,769.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,258.45 : 67,776.84 = 31,898.58 : x
  2. Step 2: Convert to fraction form
    45,258.45/67,776.84 = 31,898.58/x
  3. Step 3: Cross multiply
    45,258.45x = 67,776.84 × 31,898.58
  4. Step 4: Simplify right side
    45,258.45x = 2,161,984,952.89
  5. Step 5: Solve for x
    x = 2,161,984,952.89/45,258.45
  6. Step 6: Final answer
    x = 47,769.75

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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.