Home / 48,550.36-67,031.72-30,428.32

Finding the Fourth Proportional to 48,550.36, 67,031.72 and 30,428.32

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Solution

The fourth proportional to 48,550.36, 67,031.72 and 30,428.32 is: 42,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,550.36 : 67,031.72 = 30,428.32 : x
  2. Step 2: Convert to fraction form
    48,550.36/67,031.72 = 30,428.32/x
  3. Step 3: Cross multiply
    48,550.36x = 67,031.72 × 30,428.32
  4. Step 4: Simplify right side
    48,550.36x = 2,039,662,626.31
  5. Step 5: Solve for x
    x = 2,039,662,626.31/48,550.36
  6. Step 6: Final answer
    x = 42,011.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.