Home / 56,085.12-77,239.98-54,860.40

Finding the Fourth Proportional to 56,085.12, 77,239.98 and 54,860.40

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Solution

The fourth proportional to 56,085.12, 77,239.98 and 54,860.40 is: 75,553.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,085.12 : 77,239.98 = 54,860.40 : x
  2. Step 2: Convert to fraction form
    56,085.12/77,239.98 = 54,860.40/x
  3. Step 3: Cross multiply
    56,085.12x = 77,239.98 × 54,860.40
  4. Step 4: Simplify right side
    56,085.12x = 4,237,416,198.79
  5. Step 5: Solve for x
    x = 4,237,416,198.79/56,085.12
  6. Step 6: Final answer
    x = 75,553.31

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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.