Home / 51,688.92-77,348.66-40,518.80

Finding the Fourth Proportional to 51,688.92, 77,348.66 and 40,518.80

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Solution

The fourth proportional to 51,688.92, 77,348.66 and 40,518.80 is: 60,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,688.92 : 77,348.66 = 40,518.80 : x
  2. Step 2: Convert to fraction form
    51,688.92/77,348.66 = 40,518.80/x
  3. Step 3: Cross multiply
    51,688.92x = 77,348.66 × 40,518.80
  4. Step 4: Simplify right side
    51,688.92x = 3,134,074,884.81
  5. Step 5: Solve for x
    x = 3,134,074,884.81/51,688.92
  6. Step 6: Final answer
    x = 60,633.40

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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.