Home / 56,743.40-85,115.10-15,190.40

Finding the Fourth Proportional to 56,743.40, 85,115.10 and 15,190.40

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Solution

The fourth proportional to 56,743.40, 85,115.10 and 15,190.40 is: 22,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,743.40 : 85,115.10 = 15,190.40 : x
  2. Step 2: Convert to fraction form
    56,743.40/85,115.10 = 15,190.40/x
  3. Step 3: Cross multiply
    56,743.40x = 85,115.10 × 15,190.40
  4. Step 4: Simplify right side
    56,743.40x = 1,292,932,415.04
  5. Step 5: Solve for x
    x = 1,292,932,415.04/56,743.40
  6. Step 6: Final answer
    x = 22,785.60

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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.