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Finding the Fourth Proportional to 57,303.80, 85,955.70 and 50,391.80

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Solution

The fourth proportional to 57,303.80, 85,955.70 and 50,391.80 is: 75,587.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,303.80 : 85,955.70 = 50,391.80 : x
  2. Step 2: Convert to fraction form
    57,303.80/85,955.70 = 50,391.80/x
  3. Step 3: Cross multiply
    57,303.80x = 85,955.70 × 50,391.80
  4. Step 4: Simplify right side
    57,303.80x = 4,331,462,443.26
  5. Step 5: Solve for x
    x = 4,331,462,443.26/57,303.80
  6. Step 6: Final answer
    x = 75,587.70

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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.