Home / 56,017.98-77,342.79-39,221.82

Finding the Fourth Proportional to 56,017.98, 77,342.79 and 39,221.82

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Solution

The fourth proportional to 56,017.98, 77,342.79 and 39,221.82 is: 54,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,017.98 : 77,342.79 = 39,221.82 : x
  2. Step 2: Convert to fraction form
    56,017.98/77,342.79 = 39,221.82/x
  3. Step 3: Cross multiply
    56,017.98x = 77,342.79 × 39,221.82
  4. Step 4: Simplify right side
    56,017.98x = 3,033,524,987.68
  5. Step 5: Solve for x
    x = 3,033,524,987.68/56,017.98
  6. Step 6: Final answer
    x = 54,152.70

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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.