Home / 51,628.13-77,470.42-20,039.45

Finding the Fourth Proportional to 51,628.13, 77,470.42 and 20,039.45

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Solution

The fourth proportional to 51,628.13, 77,470.42 and 20,039.45 is: 30,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,628.13 : 77,470.42 = 20,039.45 : x
  2. Step 2: Convert to fraction form
    51,628.13/77,470.42 = 20,039.45/x
  3. Step 3: Cross multiply
    51,628.13x = 77,470.42 × 20,039.45
  4. Step 4: Simplify right side
    51,628.13x = 1,552,464,120.52
  5. Step 5: Solve for x
    x = 1,552,464,120.52/51,628.13
  6. Step 6: Final answer
    x = 30,070.12

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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.