Home / 65,466.36-98,199.60-21,099.72

Finding the Fourth Proportional to 65,466.36, 98,199.60 and 21,099.72

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Solution

The fourth proportional to 65,466.36, 98,199.60 and 21,099.72 is: 31,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,466.36 : 98,199.60 = 21,099.72 : x
  2. Step 2: Convert to fraction form
    65,466.36/98,199.60 = 21,099.72/x
  3. Step 3: Cross multiply
    65,466.36x = 98,199.60 × 21,099.72
  4. Step 4: Simplify right side
    65,466.36x = 2,071,984,064.11
  5. Step 5: Solve for x
    x = 2,071,984,064.11/65,466.36
  6. Step 6: Final answer
    x = 31,649.60

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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.