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Finding the Fourth Proportional to 57,248.40, 85,880.40 and 19,798.43

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Solution

The fourth proportional to 57,248.40, 85,880.40 and 19,798.43 is: 29,700.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,248.40 : 85,880.40 = 19,798.43 : x
  2. Step 2: Convert to fraction form
    57,248.40/85,880.40 = 19,798.43/x
  3. Step 3: Cross multiply
    57,248.40x = 85,880.40 × 19,798.43
  4. Step 4: Simplify right side
    57,248.40x = 1,700,296,695.49
  5. Step 5: Solve for x
    x = 1,700,296,695.49/57,248.40
  6. Step 6: Final answer
    x = 29,700.33

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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.