Home / 56,037.88-77,332.26-30,887.80

Finding the Fourth Proportional to 56,037.88, 77,332.26 and 30,887.80

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Solution

The fourth proportional to 56,037.88, 77,332.26 and 30,887.80 is: 42,625.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,037.88 : 77,332.26 = 30,887.80 : x
  2. Step 2: Convert to fraction form
    56,037.88/77,332.26 = 30,887.80/x
  3. Step 3: Cross multiply
    56,037.88x = 77,332.26 × 30,887.80
  4. Step 4: Simplify right side
    56,037.88x = 2,388,623,380.43
  5. Step 5: Solve for x
    x = 2,388,623,380.43/56,037.88
  6. Step 6: Final answer
    x = 42,625.16

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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.