Home / 56,721.85-84,609.81-54,778.15

Finding the Fourth Proportional to 56,721.85, 84,609.81 and 54,778.15

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Solution

The fourth proportional to 56,721.85, 84,609.81 and 54,778.15 is: 81,710.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.85 : 84,609.81 = 54,778.15 : x
  2. Step 2: Convert to fraction form
    56,721.85/84,609.81 = 54,778.15/x
  3. Step 3: Cross multiply
    56,721.85x = 84,609.81 × 54,778.15
  4. Step 4: Simplify right side
    56,721.85x = 4,634,768,863.65
  5. Step 5: Solve for x
    x = 4,634,768,863.65/56,721.85
  6. Step 6: Final answer
    x = 81,710.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.