Home / 56,919.98-85,364.38-21,378.55

Finding the Fourth Proportional to 56,919.98, 85,364.38 and 21,378.55

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Solution

The fourth proportional to 56,919.98, 85,364.38 and 21,378.55 is: 32,061.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919.98 : 85,364.38 = 21,378.55 : x
  2. Step 2: Convert to fraction form
    56,919.98/85,364.38 = 21,378.55/x
  3. Step 3: Cross multiply
    56,919.98x = 85,364.38 × 21,378.55
  4. Step 4: Simplify right side
    56,919.98x = 1,824,966,549.23
  5. Step 5: Solve for x
    x = 1,824,966,549.23/56,919.98
  6. Step 6: Final answer
    x = 32,061.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.