Home / 65,113.02-97,670.34-20,739.60

Finding the Fourth Proportional to 65,113.02, 97,670.34 and 20,739.60

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Solution

The fourth proportional to 65,113.02, 97,670.34 and 20,739.60 is: 31,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,113.02 : 97,670.34 = 20,739.60 : x
  2. Step 2: Convert to fraction form
    65,113.02/97,670.34 = 20,739.60/x
  3. Step 3: Cross multiply
    65,113.02x = 97,670.34 × 20,739.60
  4. Step 4: Simplify right side
    65,113.02x = 2,025,643,783.46
  5. Step 5: Solve for x
    x = 2,025,643,783.46/65,113.02
  6. Step 6: Final answer
    x = 31,109.66

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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.