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Finding the Fourth Proportional to 56,903.80, 85,347.60 and 19,465.60

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Solution

The fourth proportional to 56,903.80, 85,347.60 and 19,465.60 is: 29,195.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,903.80 : 85,347.60 = 19,465.60 : x
  2. Step 2: Convert to fraction form
    56,903.80/85,347.60 = 19,465.60/x
  3. Step 3: Cross multiply
    56,903.80x = 85,347.60 × 19,465.60
  4. Step 4: Simplify right side
    56,903.80x = 1,661,342,242.56
  5. Step 5: Solve for x
    x = 1,661,342,242.56/56,903.80
  6. Step 6: Final answer
    x = 29,195.63

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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.