Home / 55,799.88-77,004.15-30,307.21

Finding the Fourth Proportional to 55,799.88, 77,004.15 and 30,307.21

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Solution

The fourth proportional to 55,799.88, 77,004.15 and 30,307.21 is: 41,824.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,799.88 : 77,004.15 = 30,307.21 : x
  2. Step 2: Convert to fraction form
    55,799.88/77,004.15 = 30,307.21/x
  3. Step 3: Cross multiply
    55,799.88x = 77,004.15 × 30,307.21
  4. Step 4: Simplify right side
    55,799.88x = 2,333,780,944.92
  5. Step 5: Solve for x
    x = 2,333,780,944.92/55,799.88
  6. Step 6: Final answer
    x = 41,824.12

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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.