Home / 56,029.07-77,320.12-30,535.44

Finding the Fourth Proportional to 56,029.07, 77,320.12 and 30,535.44

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Solution

The fourth proportional to 56,029.07, 77,320.12 and 30,535.44 is: 42,138.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,029.07 : 77,320.12 = 30,535.44 : x
  2. Step 2: Convert to fraction form
    56,029.07/77,320.12 = 30,535.44/x
  3. Step 3: Cross multiply
    56,029.07x = 77,320.12 × 30,535.44
  4. Step 4: Simplify right side
    56,029.07x = 2,361,003,885.05
  5. Step 5: Solve for x
    x = 2,361,003,885.05/56,029.07
  6. Step 6: Final answer
    x = 42,138.91

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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.