Home / 57,114.40-85,671.60-30,870.40

Finding the Fourth Proportional to 57,114.40, 85,671.60 and 30,870.40

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Solution

The fourth proportional to 57,114.40, 85,671.60 and 30,870.40 is: 46,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,114.40 : 85,671.60 = 30,870.40 : x
  2. Step 2: Convert to fraction form
    57,114.40/85,671.60 = 30,870.40/x
  3. Step 3: Cross multiply
    57,114.40x = 85,671.60 × 30,870.40
  4. Step 4: Simplify right side
    57,114.40x = 2,644,716,560.64
  5. Step 5: Solve for x
    x = 2,644,716,560.64/57,114.40
  6. Step 6: Final answer
    x = 46,305.60

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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.