Home / 56,916.60-85,374.90-19,975.80

Finding the Fourth Proportional to 56,916.60, 85,374.90 and 19,975.80

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Solution

The fourth proportional to 56,916.60, 85,374.90 and 19,975.80 is: 29,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,916.60 : 85,374.90 = 19,975.80 : x
  2. Step 2: Convert to fraction form
    56,916.60/85,374.90 = 19,975.80/x
  3. Step 3: Cross multiply
    56,916.60x = 85,374.90 × 19,975.80
  4. Step 4: Simplify right side
    56,916.60x = 1,705,431,927.42
  5. Step 5: Solve for x
    x = 1,705,431,927.42/56,916.60
  6. Step 6: Final answer
    x = 29,963.70

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1.5x scale

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.