Home / 57,360.20-85,870.20-42,634.40

Finding the Fourth Proportional to 57,360.20, 85,870.20 and 42,634.40

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Solution

The fourth proportional to 57,360.20, 85,870.20 and 42,634.40 is: 63,825.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,360.20 : 85,870.20 = 42,634.40 : x
  2. Step 2: Convert to fraction form
    57,360.20/85,870.20 = 42,634.40/x
  3. Step 3: Cross multiply
    57,360.20x = 85,870.20 × 42,634.40
  4. Step 4: Simplify right side
    57,360.20x = 3,661,024,454.88
  5. Step 5: Solve for x
    x = 3,661,024,454.88/57,360.20
  6. Step 6: Final answer
    x = 63,825.17

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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.