Home / 50,320.29-75,480.39-12,880.31

Finding the Fourth Proportional to 50,320.29, 75,480.39 and 12,880.31

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Solution

The fourth proportional to 50,320.29, 75,480.39 and 12,880.31 is: 19,320.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,320.29 : 75,480.39 = 12,880.31 : x
  2. Step 2: Convert to fraction form
    50,320.29/75,480.39 = 12,880.31/x
  3. Step 3: Cross multiply
    50,320.29x = 75,480.39 × 12,880.31
  4. Step 4: Simplify right side
    50,320.29x = 972,210,539.63
  5. Step 5: Solve for x
    x = 972,210,539.63/50,320.29
  6. Step 6: Final answer
    x = 19,320.45

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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.