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Finding the Fourth Proportional to 57,130.60, 85,695.90 and 15,577.60

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Solution

The fourth proportional to 57,130.60, 85,695.90 and 15,577.60 is: 23,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,130.60 : 85,695.90 = 15,577.60 : x
  2. Step 2: Convert to fraction form
    57,130.60/85,695.90 = 15,577.60/x
  3. Step 3: Cross multiply
    57,130.60x = 85,695.90 × 15,577.60
  4. Step 4: Simplify right side
    57,130.60x = 1,334,936,451.84
  5. Step 5: Solve for x
    x = 1,334,936,451.84/57,130.60
  6. Step 6: Final answer
    x = 23,366.40

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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.