Home / 56,385.43-77,808.92-30,887.06

Finding the Fourth Proportional to 56,385.43, 77,808.92 and 30,887.06

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Solution

The fourth proportional to 56,385.43, 77,808.92 and 30,887.06 is: 42,622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,385.43 : 77,808.92 = 30,887.06 : x
  2. Step 2: Convert to fraction form
    56,385.43/77,808.92 = 30,887.06/x
  3. Step 3: Cross multiply
    56,385.43x = 77,808.92 × 30,887.06
  4. Step 4: Simplify right side
    56,385.43x = 2,403,288,780.58
  5. Step 5: Solve for x
    x = 2,403,288,780.58/56,385.43
  6. Step 6: Final answer
    x = 42,622.51

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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.