Home / 65,187.20-97,899.60-38,943.20

Finding the Fourth Proportional to 65,187.20, 97,899.60 and 38,943.20

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Solution

The fourth proportional to 65,187.20, 97,899.60 and 38,943.20 is: 58,485.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,187.20 : 97,899.60 = 38,943.20 : x
  2. Step 2: Convert to fraction form
    65,187.20/97,899.60 = 38,943.20/x
  3. Step 3: Cross multiply
    65,187.20x = 97,899.60 × 38,943.20
  4. Step 4: Simplify right side
    65,187.20x = 3,812,523,702.72
  5. Step 5: Solve for x
    x = 3,812,523,702.72/65,187.20
  6. Step 6: Final answer
    x = 58,485.77

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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.