Home / 56,073.39-77,381.04-30,579.69

Finding the Fourth Proportional to 56,073.39, 77,381.04 and 30,579.69

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Solution

The fourth proportional to 56,073.39, 77,381.04 and 30,579.69 is: 42,199.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,073.39 : 77,381.04 = 30,579.69 : x
  2. Step 2: Convert to fraction form
    56,073.39/77,381.04 = 30,579.69/x
  3. Step 3: Cross multiply
    56,073.39x = 77,381.04 × 30,579.69
  4. Step 4: Simplify right side
    56,073.39x = 2,366,288,215.08
  5. Step 5: Solve for x
    x = 2,366,288,215.08/56,073.39
  6. Step 6: Final answer
    x = 42,199.84

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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.